1966 AFL Season

63 regular-season games · 2 playoff teams

Final

Champion

Kansas City Chiefs

2nd Title

Last Title: 1962

Runner-Up

Buffalo Bills

3rd Appearance

Last Appearance: 1965

Biggest Overachiever

Kansas City Chiefs

3.02 wins above expected

11 wins · 8.48 expected wins

Biggest Disappointment

Houston Oilers

3.36 wins below expected

3 wins · 6.36 expected wins

Final Standings

Final regular season records. The vsSim column shows actual wins minus the simulation's mean wins - positive values indicate the team overachieved, negative values mean they underperformed.

#	Team	W	L	T	Pct	GB	PF	PA	PD	SimW	vsSim
1	Buffalo Bills Division	9	4	1	.679	-	358	255	+103	9.05	+0.45
2	Boston Patriots	8	4	2	.643	0.5	315	283	+32	7.31	+1.69
3	New York Jets	6	6	2	.500	2.5	322	312	+10	6.93	+0.07
4	Miami Dolphins	3	11	0	.214	6.5	213	362	-149	2.89	+0.11
5	Houston Oilers	3	11	0	.214	6.5	335	396	-61	6.36	-3.36

#	Team	W	L	T	Pct	GB	PF	PA	PD	SimW	vsSim
1	Kansas City Chiefs Division	11	2	1	.821	-	448	276	+172	8.48	+3.02
2	Oakland Raiders	8	5	1	.607	3	315	288	+27	8.04	+0.46
3	San Diego Chargers	7	6	1	.536	4	335	284	+51	8.35	-0.85
4	Denver Broncos	4	10	0	.286	7.5	196	381	-185	5.59	-1.59

Playoff Bracket

AFL Championship Game

Kansas City Chiefs 31

Buffalo Bills 7

Jan 1

Season Summary

Every team's regular season finish compared against the simulated win totals. Click on any column header to sort. Luck is the team's actual total minus the simulation's mean. Positive values indicate the team outperformed the expected total; negative values indicate the team was unluckier than expected. Percentile represents where their actual result fell in the simulated distribution.

Team	Conference	Elo	Actual	Avg. Wins	Luck	Percentile	Min	5th	Q1	Median	Q3	95th	Max
Buffalo Bills	East	1615	9.5	9.05	+0.45	86.71%	1	6	7	9	10	11	14
Kansas City Chiefs	West	1596	11.5	8.48	+3.02	99.67%	1	5	7	8	9	11	14
San Diego Chargers	West	1571	7.5	8.35	-0.85	64.11%	1	5	7	8	9	11	14
Oakland Raiders	West	1554	8.5	8.04	+0.46	86.57%	0	5	6	8	9	10	14
Boston Patriots	East	1539	9	7.31	+1.69	98.07%	0	4	6	7	8	10	14
New York Jets	East	1497	7	6.93	+0.07	87.85%	0	4	5	6	8	9	14
Houston Oilers	East	1441	3	6.36	-3.36	9.06%	0	3	5	6	7	9	13
Denver Broncos	West	1414	4	5.59	-1.59	37.51%	0	2	4	5	6	8	13
Miami Dolphins	East	1272	3	2.89	+0.11	76.64%	0	0	2	2	3	5	9

Head-to-Head

Cells show each team's record against each opponent with the expected wins from the simulation below Gold-tinted cells indicate the team beat the model's expectations by more than a half-win while navy-tinted cells indicate they fell short by more than a half-win. The first table covers within-division games while the second covers games against teams outside the division.

Beat expectations Fell short Within expectations

Within East

Team	Patriots	Bills	Oilers	Dolphins	Jets
Boston Patriots	—	2-0 (0.7 exp.)	2-0 (1.1 exp.)	1-0 (0.8 exp.)	0-1-1 (1.0 exp.)
Buffalo Bills	0-2 (1.2 exp.)	—	2-0 (1.3 exp.)	2-0 (1.7 exp.)	2-0 (1.2 exp.)
Houston Oilers	0-2 (0.7 exp.)	0-2 (0.6 exp.)	—	0-2 (1.4 exp.)	1-1 (0.8 exp.)
Miami Dolphins	0-1 (0.2 exp.)	0-2 (0.3 exp.)	2-0 (0.5 exp.)	—	0-2 (0.4 exp.)
New York Jets	1-0-1 (0.8 exp.)	0-2 (0.7 exp.)	1-1 (1.0 exp.)	2-0 (1.5 exp.)	—

East vs. Outside Teams

Team	Broncos	Chiefs	Raiders	Chargers
Boston Patriots	1-1 (1.2 exp.)	0-1-1 (0.8 exp.)	1-0 (0.5 exp.)	1-1 (0.7 exp.)
Buffalo Bills	1-0 (0.7 exp.)	1-1 (1.0 exp.)	1-0 (0.5 exp.)	0-1-1 (1.0 exp.)
Houston Oilers	1-1 (1.0 exp.)	0-1 (0.3 exp.)	1-1 (0.7 exp.)	0-1 (0.3 exp.)
Miami Dolphins	1-1 (0.5 exp.)	0-2 (0.3 exp.)	0-2 (0.3 exp.)	0-1 (0.1 exp.)
New York Jets	1-0 (0.5 exp.)	0-1 (0.4 exp.)	0-1-1 (0.8 exp.)	1-1 (0.7 exp.)

Within West

Team	Broncos	Chiefs	Raiders	Chargers
Denver Broncos	—	0-2 (0.6 exp.)	0-2 (0.6 exp.)	1-1 (0.5 exp.)
Kansas City Chiefs	2-0 (1.3 exp.)	—	1-1 (1.0 exp.)	2-0 (0.9 exp.)
Oakland Raiders	2-0 (1.3 exp.)	1-1 (0.8 exp.)	—	1-1 (0.8 exp.)
San Diego Chargers	1-1 (1.4 exp.)	0-2 (0.9 exp.)	1-1 (1.0 exp.)	—

West vs. Outside Teams

Team	Patriots	Bills	Oilers	Dolphins	Jets
Denver Broncos	1-1 (0.7 exp.)	0-1 (0.2 exp.)	1-1 (0.8 exp.)	1-1 (1.3 exp.)	0-1 (0.4 exp.)
Kansas City Chiefs	1-0-1 (1.1 exp.)	1-1 (0.8 exp.)	1-0 (0.6 exp.)	2-0 (1.7 exp.)	1-0 (0.5 exp.)
Oakland Raiders	0-1 (0.4 exp.)	0-1 (0.4 exp.)	1-1 (1.1 exp.)	2-0 (1.6 exp.)	1-0-1 (1.0 exp.)
San Diego Chargers	1-1 (1.1 exp.)	1-0-1 (0.9 exp.)	1-0 (0.6 exp.)	1-0 (0.9 exp.)	1-1 (1.1 exp.)

Scoreline Distribution

Cells represent the percentage of games that ended with a team's points in the row and its opponent's points in the column. Cells below the diagonal are wins (gold), and cells above are losses (blue). Totals along the edges show the marginal percentages for that row or column.

Win Loss Same range

View:

↓ Scored \| Allowed →	0–6	7–13	14–20	21–27	28–34	35–41	42+	Total
0–6	—	—	2.38%	1.59%	1.59%	—	—	5.56%
7–13	—	—	3.97%	3.17%	3.97%	0.79%	3.17%	15.08%
14–20	2.38%	3.97%	9.52%	3.97%	2.38%	2.38%	1.59%	26.19%
21–27	1.59%	3.17%	3.97%	7.94%	2.38%	1.59%	3.17%	23.81%
28–34	1.59%	3.97%	2.38%	2.38%	3.17%	0.79%	—	14.29%
35–41	—	0.79%	2.38%	1.59%	0.79%	1.59%	—	7.14%
42+	—	3.17%	1.59%	3.17%	—	—	—	7.94%
Total	5.56%	15.08%	26.19%	23.81%	14.29%	7.14%	7.94%	100%

Summary Statistics

	Scored	Allowed	Difference
Mean	22.52	22.52	+0.00
SD	11.78	11.78	18.06
CV	0.52	0.52	—
Max	58	58	+46
Min	0	0	-46

Games Played: 63

↓ Scored \| Allowed →	0–6	7–13	14–20	21–27	28–34	35–41	42+	Total
0–6	—	—	—	7.14%	—	—	—	7.14%
7–13	—	—	7.14%	—	—	—	—	7.14%
14–20	7.14%	7.14%	7.14%	—	—	—	—	21.43%
21–27	—	7.14%	—	28.57%	—	—	7.14%	42.86%
28–34	—	—	—	—	—	7.14%	—	7.14%
35–41	—	—	14.29%	—	—	—	—	14.29%
42+	—	—	—	—	—	—	—	—
Total	7.14%	14.29%	28.57%	35.71%	—	7.14%	7.14%	100%

Boston Patriots — Summary Statistics

	Scored	Allowed	Difference
Mean	22.50	20.21	+2.29
SD	9.70	10.79	13.62
CV	0.43	0.53	—
Max	38	43	+24
Min	0	3	-24

Games Played: 14

↓ Scored \| Allowed →	0–6	7–13	14–20	21–27	28–34	35–41	42+	Total
0–6	—	—	7.14%	—	—	—	—	7.14%
7–13	—	—	7.14%	7.14%	—	—	—	14.29%
14–20	7.14%	—	7.14%	—	—	—	7.14%	21.43%
21–27	—	—	7.14%	—	—	—	—	7.14%
28–34	7.14%	7.14%	7.14%	7.14%	—	—	—	28.57%
35–41	—	—	—	7.14%	—	—	—	7.14%
42+	—	—	7.14%	7.14%	—	—	—	14.29%
Total	14.29%	7.14%	42.86%	28.57%	—	—	7.14%	100%

Buffalo Bills — Summary Statistics

	Scored	Allowed	Difference
Mean	25.57	18.21	+7.36
SD	14.99	10.32	17.66
CV	0.59	0.57	—
Max	58	42	+34
Min	3	0	-22

Games Played: 14

↓ Scored \| Allowed →	0–6	7–13	14–20	21–27	28–34	35–41	42+	Total
0–6	—	—	7.14%	—	—	—	—	7.14%
7–13	—	—	7.14%	14.29%	7.14%	7.14%	14.29%	50.00%
14–20	—	14.29%	7.14%	7.14%	—	—	—	28.57%
21–27	—	—	—	—	—	7.14%	—	7.14%
28–34	—	—	—	—	—	—	—	—
35–41	—	—	—	—	—	7.14%	—	7.14%
42+	—	—	—	—	—	—	—	—
Total	—	14.29%	21.43%	21.43%	7.14%	21.43%	14.29%	100%

Denver Broncos — Summary Statistics

	Scored	Allowed	Difference
Mean	14.00	27.21	-13.21
SD	9.28	13.99	16.24
CV	0.66	0.51	—
Max	40	56	+10
Min	3	7	-46

Games Played: 14

↓ Scored \| Allowed →	0–6	7–13	14–20	21–27	28–34	35–41	42+	Total
0–6	—	—	—	—	—	—	—	—
7–13	—	—	7.14%	—	—	—	7.14%	14.29%
14–20	—	—	—	7.14%	—	7.14%	7.14%	21.43%
21–27	7.14%	—	—	7.14%	7.14%	7.14%	7.14%	35.71%
28–34	7.14%	—	—	—	7.14%	—	—	14.29%
35–41	—	—	—	—	—	7.14%	—	7.14%
42+	—	7.14%	—	—	—	—	—	7.14%
Total	14.29%	7.14%	7.14%	14.29%	14.29%	21.43%	21.43%	100%

Houston Oilers — Summary Statistics

	Scored	Allowed	Difference
Mean	23.93	28.29	-4.36
SD	9.16	16.62	22.05
CV	0.38	0.59	—
Max	45	52	+38
Min	13	0	-39

Games Played: 14

↓ Scored \| Allowed →	0–6	7–13	14–20	21–27	28–34	35–41	42+	Total
0–6	—	—	—	—	—	—	—	—
7–13	—	—	—	—	7.14%	—	—	7.14%
14–20	—	—	7.14%	—	7.14%	—	—	14.29%
21–27	—	—	14.29%	7.14%	—	—	—	21.43%
28–34	—	7.14%	7.14%	7.14%	—	—	—	21.43%
35–41	—	7.14%	—	—	—	—	—	7.14%
42+	—	7.14%	7.14%	14.29%	—	—	—	28.57%
Total	—	21.43%	35.71%	28.57%	14.29%	—	—	100%

Kansas City Chiefs — Summary Statistics

	Scored	Allowed	Difference
Mean	32.00	19.71	+12.29
SD	12.56	7.50	17.41
CV	0.39	0.38	—
Max	56	34	+46
Min	13	10	-21

Games Played: 14

↓ Scored \| Allowed →	0–6	7–13	14–20	21–27	28–34	35–41	42+	Total
0–6	—	—	—	—	7.14%	—	—	7.14%
7–13	—	—	7.14%	7.14%	7.14%	—	7.14%	28.57%
14–20	—	7.14%	21.43%	7.14%	7.14%	—	—	42.86%
21–27	—	7.14%	—	—	—	—	7.14%	14.29%
28–34	—	—	—	—	7.14%	—	—	7.14%
35–41	—	—	—	—	—	—	—	—
42+	—	—	—	—	—	—	—	—
Total	—	14.29%	28.57%	14.29%	28.57%	—	14.29%	100%

Miami Dolphins — Summary Statistics

	Scored	Allowed	Difference
Mean	15.21	25.86	-10.64
SD	7.54	13.07	14.89
CV	0.50	0.51	—
Max	29	58	+17
Min	0	7	-34

Games Played: 14

↓ Scored \| Allowed →	0–6	7–13	14–20	21–27	28–34	35–41	42+	Total
0–6	—	—	7.14%	7.14%	—	—	—	14.29%
7–13	—	—	—	—	—	—	—	—
14–20	—	7.14%	14.29%	—	—	—	—	21.43%
21–27	—	—	—	14.29%	14.29%	—	7.14%	35.71%
28–34	—	7.14%	—	—	7.14%	—	—	14.29%
35–41	—	—	—	—	7.14%	—	—	7.14%
42+	—	7.14%	—	—	—	—	—	7.14%
Total	—	21.43%	21.43%	21.43%	28.57%	—	7.14%	100%

New York Jets — Summary Statistics

	Scored	Allowed	Difference
Mean	23.00	22.29	+0.71
SD	12.99	9.82	15.45
CV	0.56	0.44	—
Max	52	42	+39
Min	0	7	-24

Games Played: 14

↓ Scored \| Allowed →	0–6	7–13	14–20	21–27	28–34	35–41	42+	Total
0–6	—	—	—	—	7.14%	—	—	7.14%
7–13	—	—	—	—	14.29%	—	—	14.29%
14–20	7.14%	—	—	—	7.14%	—	—	14.29%
21–27	—	7.14%	7.14%	14.29%	—	—	—	28.57%
28–34	—	14.29%	—	—	7.14%	—	—	21.43%
35–41	—	—	7.14%	7.14%	—	—	—	14.29%
42+	—	—	—	—	—	—	—	—
Total	7.14%	21.43%	14.29%	21.43%	35.71%	—	—	100%

Oakland Raiders — Summary Statistics

	Scored	Allowed	Difference
Mean	22.50	20.57	+1.93
SD	11.22	9.31	17.11
CV	0.50	0.45	—
Max	41	32	+22
Min	0	3	-31

Games Played: 14

↓ Scored \| Allowed →	0–6	7–13	14–20	21–27	28–34	35–41	42+	Total
0–6	—	—	—	—	—	—	—	—
7–13	—	—	—	—	—	—	—	—
14–20	—	—	21.43%	14.29%	—	14.29%	—	50.00%
21–27	7.14%	7.14%	7.14%	—	—	—	—	21.43%
28–34	—	—	7.14%	7.14%	—	—	—	14.29%
35–41	—	—	—	—	—	—	—	—
42+	—	7.14%	—	7.14%	—	—	—	14.29%
Total	7.14%	14.29%	35.71%	28.57%	—	14.29%	—	100%

San Diego Chargers — Summary Statistics

	Scored	Allowed	Difference
Mean	23.93	20.29	+3.64
SD	9.44	10.67	16.07
CV	0.39	0.53	—
Max	44	41	+34
Min	14	0	-22

Games Played: 14

Wins vs. Points Scored, Allowed, and Differential

Wins plotted against points scored, allowed, and differential. Use the buttons to switch views; hover a team for exact values. The table gives each fit's R² and slope (the change in wins per 10 points).

Fit Metrics

	R²	Slope
Scored	0.60	+0.3
Allowed	0.83	-0.5
Differential	0.84	+0.2

Home-Field Advantage Edge

A measure of how well each team has taken advantage of home-field advantage during the season. For each team, sum the win probabilities for home games and compare against the team's actual performance at home. Repeat for games on the road. Positive values indicate the team has played comparatively better at home than on the road. Negative values indicate the team is not utilizing home field advantage.

Top Overachievers & Disappointments

The teams that deviated the most from the simulated results.

Top Overachievers

#	Team	Actual	Sim	Luck
1	Kansas City Chiefs	11.5	8.48	+3.02
2	Boston Patriots	9	7.31	+1.69
3	Oakland Raiders	8.5	8.04	+0.46
4	Buffalo Bills	9.5	9.05	+0.45
5	Miami Dolphins	3	2.89	+0.11

Biggest Disappointments

#	Team	Actual	Sim	Luck
1	Houston Oilers	3	6.36	-3.36
2	Denver Broncos	4	5.59	-1.59
3	San Diego Chargers	7.5	8.35	-0.85
4	New York Jets	7	6.93	+0.07
5	Miami Dolphins	3	2.89	+0.11

Top Streaks

The most unlikely streaks achieved by teams throughout the season according to the model's probabilities. Calculated by using the pregame win/tie/loss probabilities for all the games in each team's streak.

Most Unlikely Winning Streaks

#	Team	Games	Dates	Probability
1	Miami Dolphins	2	Oct 16 – Oct 23	1 in 18
2	Boston Patriots	3	Oct 8 – Oct 30	1 in 17
3	Buffalo Bills	5	Oct 30 – Nov 24	1 in 11
4	San Diego Chargers	4	Sep 4 – Oct 2	1 in 9
5	Oakland Raiders	3	Oct 9 – Oct 23	1 in 7

Most Unlikely Losing Streaks

#	Team	Games	Dates	Probability
1	Houston Oilers	8	Oct 23 – Dec 18	1 in 415
2	San Diego Chargers	3	Nov 6 – Nov 27	1 in 19
3	New York Jets	4	Oct 16 – Nov 13	1 in 14
4	Denver Broncos	4	Oct 8 – Oct 30	1 in 12
5	Oakland Raiders	3	Sep 10 – Sep 25	1 in 12

Finish Position Heatmaps

Cells represent the percentage of the time a team finished in a given position in the simulation.

Team	1	2	3	4	5
Buffalo Bills	60.03%	23.75%	11.31%	4.58%	0.32%
Boston Patriots	18.49%	30.68%	27.93%	20.58%	2.32%
New York Jets	13.48%	26.17%	30.13%	26.32%	3.90%
Houston Oilers	7.95%	18.86%	28.38%	38.16%	6.65%
Miami Dolphins	0.06%	0.54%	2.25%	10.35%	86.81%

Team	1	2	3	4
Kansas City Chiefs	36.79%	30.86%	23.80%	8.56%
San Diego Chargers	33.89%	31.01%	25.54%	9.56%
Oakland Raiders	26.39%	30.35%	30.76%	12.50%
Denver Broncos	2.93%	7.79%	19.90%	69.38%

Team	1	2	3	4	5	6	7	8	9
Buffalo Bills	30.92%	21.68%	16.15%	11.86%	8.52%	5.84%	3.41%	1.44%	0.19%
Kansas City Chiefs	20.51%	18.92%	16.78%	14.47%	11.60%	8.69%	5.62%	2.97%	0.43%
San Diego Chargers	19.02%	18.01%	16.59%	14.39%	11.95%	9.51%	6.55%	3.60%	0.40%
Oakland Raiders	13.41%	16.04%	16.00%	15.61%	13.67%	11.25%	8.36%	4.84%	0.81%
Boston Patriots	7.56%	10.49%	12.80%	14.26%	15.30%	15.08%	13.38%	9.38%	1.75%
New York Jets	5.08%	7.88%	10.44%	12.85%	15.29%	16.63%	16.33%	12.61%	2.90%
Houston Oilers	2.55%	4.72%	7.28%	10.16%	13.38%	16.90%	20.05%	19.73%	5.23%
Denver Broncos	0.95%	2.24%	3.87%	6.12%	9.59%	14.44%	21.63%	30.69%	10.46%
Miami Dolphins	<0.01%	0.03%	0.08%	0.28%	0.71%	1.65%	4.67%	14.74%	77.83%

Win Totals in Context

How each team's actual results compared to their simulated results, Elo rating, average opponent Elo, and percentile within simulated outcomes? Click a division name in the legend to toggle it on or off.

Playoff Seed Probabilities

Cells represent the percentage of the time a team earned a given playoff seed in the simulation. Teams are sorted by likelihood of earning the top seed. Teams that missed the playoffs more often sit toward the bottom.

Team	1 Seed	Missed Playoffs
Buffalo Bills	60.03%	39.97%
Boston Patriots	18.49%	81.51%
New York Jets	13.48%	86.52%
Houston Oilers	7.95%	92.05%
Miami Dolphins	0.06%	99.94%

Team	1 Seed	Missed Playoffs
Kansas City Chiefs	36.79%	63.21%
San Diego Chargers	33.89%	66.11%
Oakland Raiders	26.39%	73.61%
Denver Broncos	2.93%	97.07%

Wins Required to Clinch Each Seed

The empirical cumulative distribution that shows the probability that a team earning that seed finished the regular season with at most a given number of wins. The point where each line passes through 50% is roughly the median wins for that seed.

Edges & Scoring

How these are measured

The navy dot is the actual value, the gold line and key are the model's reference where one applies, and the slate ticks are the cutoffs between read labels listed under each metric.

Home Edge: Percentage of games won by the home team - percentage of games won by the away team
No Edge: under 2% · Slight Edge: 2% to 6% · Clear Edge: 6% to 10% · Fortress: 10% and up.
Elo Value: Number of Elo rating points that 1 point is worth. A team this many Elo ratings points better than another would be expected to defeat their opponent by 1 point at a neutral location.
Scoring Tilt: Average home points - average away points per game. The gold line represents the expected home points edge according to the scoring value of a point of Elo and the number of Elo rating points home advantage is worth.
Road-Tilted: under -3.2 · Lean Road: -3.2 to 0 · Lean Home: 0 to 3.2 · Home-Tilted: 3.2 and up.

Home Edge

HomeTieAway

+7.94%

Clear Edge

50.79%6.35%42.86%

Elo Value

Home Edge

17 Elo

0.059 points per Elo point

027.6350

Scoring Tilt

Expected

+2.11 points

Lean Home

-8+1.63+8

Title Race

How these are measured

The navy dot is the actual value, the gold line and key are the model's reference where one applies, and the slate ticks are the cutoffs between read labels listed under each metric.

Title-Race Openness: Effective number of preseason title contenders. Calculated by taking 1 divided by the sum of squared preseason title odds. Higher numbers indicate more parity in the league while 1 indicates that the preseason favorite is a near-lock.
Front-Runner: under 2 · Few Contenders: 2 to 4 · Open Race: 4 to 8 · Wide Open: 8 and up.
Champion Preseason Odds: Preseason probability that the eventual champion would win the title based on the simulated results. Location of the dot marks their rank across all teams, ranging from longshot to favorite.
Preseason Favorite: 1st · Among the Favorites: 2nd · Middle of the Pack: 3rd to 5th · Longshot: 6th or lower.

Title-Race Openness

4.8

Open Race

12489

Champion Preseason Odds

20%

Kansas City Chiefs, 2nd of 9

LongshotFavorite

Simulation-Based Surprises

How these are measured

The navy dot is the actual value, the gold line and key are the model's reference where one applies, and the slate ticks are the cutoffs between read labels listed under each metric.

Luck Spread: Average standard deviation of the difference between each team's actual wins total and their simulated average wins total. The gold line is the standard deviation the model expected from random chance alone.
Subdued: under 1.4 · As Expected: 1.4 to 1.92 · Elevated: 1.92 to 2.62 · High Variance: 2.62 and up.
Average Finish Error: Average gap in the rank of the final standings between where each team finished in the standings and where the model projected them to finish.
Pinpoint: under 1.33 · Close: 1.33 to 1.8 · Off Target: 1.8 to 2.35 · Well Off Target: 2.35 and up.
Biggest Overachiever: The team whose record finished in the highest percentile within its own simulated range of outcomes. The gold line indicates where the top team in a league of 9 teams typically lands.
Biggest Underachiever: The team whose record finished in the lowest percentile within its own simulated range of outcomes. The gold line indicates where the bottom team in a league of 9 teams typically lands.
Season Outliers: Number of teams that finished either above the 95th percentile or below the 5th percentile. Even with a well-calibrated model, 10% of teams are expected to land in the extremes of their distributions.
Minimal Outliers: under 0.45 · As Expected: 0.45 to 1.08 · Several Outliers: 1.08 to 1.98 · Many Outliers: 1.98 and up.
Unexpected Playoff Teams: Number of teams that actually made the playoffs but were not in the model's projected field.The gold line represents how many playoff teams the simulation missed on average.
Fewer Than Expected: under 0.77 · As Expected: 0.77 to 1.29 · More Than Expected: 1.29 to 2.06 · Far More Than Expected: 2.06 and up.

Luck Spread

Expected

1.97 wins

Elevated

01.754

Average Finish Error

Expected

1.22

Pinpoint

01.574

Biggest Overachiever

Expected 94.44%

99.67%

Kansas City Chiefs

50100

Biggest Underachiever

Expected

9.06%

Houston Oilers

05.56%50

Season Outliers

Expected

2 of 9

Many Outliers

00.99

Unexpected Playoff Teams

Expected

1 of 2

As Expected

01.02

Parity

How these are measured

The navy dot is the actual value, the gold line and key are the model's reference where one applies, and the slate ticks are the cutoffs between read labels listed under each metric.

Gini Index: Measures how evenly wins were distributed across the league. Lower scores indicate there was less variability across the actual wins totals .Higher scores are an indication of more imbalance in the league with a few unusually strong or unusually weak teams.
Highly Balanced: under 0.08 · Balanced: 0.08 to 0.15 · Top-Heavy: 0.15 to 0.24 · Concentrated: 0.24 and up.
Noll-Scully: Measures how more times spread out the final standings were in reality compared to standings that were generated by flipping a coin for each game. The gold line at 1 indicates as much variability in the standings as s coin flip. Above it, talent gaps in team composition stretched the standings more than the variability produced by luck alone. Below it, the league was more competitive than coin flips alone would yield.
Compressed: under 0.9 · Coin-Flip Spread: 0.9 to 1.15 · Moderate Separation: 1.15 to 1.45 · Stratified: 1.45 and up.
Interquartile Edge: The probability that the team in the 75th percentile of the league's Elo ratings would defeat the team in the 25th percentile at a neutral site. The higher the probability, the larger the gap between the top teams and bottom teams in the league.
Even: under 58% · Competitive: 58% to 65% · Tilted: 65% to 73% · Lopsided: 73% and up.
Best vs. Worst: The probability that the team with the highest Elo rating would defeat the team with the lowest Elo rating at a neutral site.The higher the probability, the larger the gap between the top teams and bottom teams in the league. The gold line represents how high this probability is expected to be in a league of this size. A blue dot to the right indicates an unusually dominant team or an unusually weak team.
Tight: under 65% · Clear Edge: 65% to 78% · Lopsided: 78% to 88% · No Contest: 88% and up.
Close Games: Actual percentage of games decided by 3 run/points or fewer. The gold line indicates the proportion of close games you would expect after considering the Elo ratings of the involved teams and the scoring value of a single Elo point.
Mostly Decisive: under 25% · Some Drama: 25% to 38% · Often Close: 38% to 50% · Nail-Biters: 50% and up.
Blowouts: Actual percentage of games decided by 17 runs/points or more. The gold line indicates the proportion of blowouts you would expect after considering the Elo ratings of the involved teams and the scoring value of a single Elo point.
Rare: under 10% · Occasional: 10% to 20% · Frequent: 20% to 30% · Routine: 30% and up.

Gini Index

0.23

Top-Heavy

00.080.150.240.5

Noll-Scully

Coin-flip

1.01

Coin-Flip Spread

01.003

Interquartile Edge

68%

Tilted

50%58%65%73%100%

Best vs. Worst

Baseline

88%

Lopsided

50%88%100%

Close Games

Expected

17%

Mostly Decisive

0%15%100%

Blowouts

Expected

41%

Routine

0%36%100%

Predictability

How these are measured

The navy dot is the actual value, the gold line and key are the model's reference where one applies, and the slate ticks are the cutoffs between read labels listed under each metric.

Brier Score: How close the pregame win probabilities aligned with the actual game result, averaged over the entire season. Picks that were both confident and correct are rewarded the most, while incorrect predictions and/or uncertain predictions are penalized more. Lower scores are better. 0 indicates every game was perfectly predicted with maximum confidence. For sports with where wins and losses are the only outcomes, Brier scores less than 0.25 indicate the model did better than random predictions. For sports where ties are possible, 0.67 is the cutoff for which the Brier score must be lower to beat random predictions. The lower the Brier score, the easier and more accurately the games were to predict.
Highly Predictable: under 0.56 · Predictable: 0.56 to 0.62 · Hard to Predict: 0.62 to 0.66 · Coin-Flip: 0.66 and up.
Matchup Imbalance: How lopsided the matchups were on paper, calculated by averaging the difference in the win probabilities divided by the sum of the win probabilities. Lower scores indicate more parity in the league. 0 indicates that every game was a 50-50 toss-up between evenly matched teams. 1 means every game pitted a heavy favorite against a huge underdog.
Evenly Matched: under 0.12 · Slight Separation: 0.12 to 0.22 · Wide Gaps: 0.22 to 0.34 · Lopsided: 0.34 and up.
Strangeness: How extreme the actual final standings were compared to what the model expected. A value of 0 would indicate that the simulated results perfectly matched the actual standings. A score of 1 indicates that the actual results were scattered around the projections by exactly the variance the model predicted. (i.e. The projections missed the actual standings by 1 standard deviation on average. Scores larger than 1 mean the season was wilder to forecast with more overperforming and underperforming teams than expected. Scores less than 1 indicate the season was more predictable.
Tighter Than Modeled: under 0.85 · As Expected: 0.85 to 1.15 · Volatile: 1.15 to 1.5 · Chaotic: 1.5 and up.
Repeatability: How closely the order of the final standings aligned with the ranked preseason Elo ratings as calculated by the Spearman rank correlation. Larger values indicate that the preseason Elo ratings were a strong predictor of the team's final rank in the standings while values near 0 mean.
Reshuffled: under 0.3 · Weak Alignment: 0.3 to 0.6 · Strong Alignment: 0.6 to 0.85 · Closely Aligned: 0.85 and up.
Upset Rate: The percentage of the time the underdog won the game in reality. The gold line measures how often the model expected the underdog to win when considering the outcome probabilities. A blue dot to the right of the gold line means upsets were more prevalent than left. A dot to the left indicates that favorites won more often than expected.
Chalk Held: under 30% · As Expected: 30% to 40% · Upset-Prone: 40% to 46% · Bedlam: 46% and up.
Clear Favorite Upset Rate: The percentage of the time the underdog won the game in reality, but only including games with a clear favorite, one at least 60% likely to win once a draw is set aside. This metrics ignores games that could be considered toss-ups. The gold line is how often the model expected these heavy favorites to lose. A dot to the right means the big favorites were upset more than expected; to the left means they took care of business.
Favorites Held: under 22% · As Expected: 22% to 32% · Shaky Favorites: 32% to 42% · Bedlam: 42% and up.

Brier Score

Expected

0.46

Highly Predictable

00.502

Matchup Imbalance

0.30

Wide Gaps

00.120.220.340.5

Strangeness

Expected

1.49

Volatile

01.002

Repeatability

0.76

Strong Alignment

00.30.60.851

Upset Rate

Expected

32%

As Expected

0%32%50%

Clear Favorite Upset Rate

Expected

22%

As Expected

0%25%50%

Calibration

How these are measured

The navy dot is the actual value, the gold line and key are the model's reference where one applies, and the slate ticks are the cutoffs between read labels listed under each metric.

Probability calibration: An all-in-one chi-square test of the model's probabilities. Games are sorted into bins according to how confident the model was. Within each bin, the predicted number of wins, losses, and ties are compared against the actual counts. The p-value of this test is plotted below. Values above 0.05 indicate that the model's probabilities are well-calibrated for the season.
Clear Misfit: under 0.01 · Misfit: 0.01 to 0.05 · Borderline: 0.05 to 0.1 · Well Calibrated: 0.1 and up.
Calibration slope: Checks whether the spread of the model's probabilities is correct. Each probability is turned into their log-odds. A line is fit that predicts the actual results from the log-odds. The slope of this line is the calibration slope.A slope of 1.00 is perfect, indicating that the model's confidence matches the actual outcomes of the games. Slopes less than 1.00 indicate overconfidence. The model assigned higher probabilities to the favorites than was appropriate given the matchup, causing more losses by favored teams. Slopes greater than 1.00 indicate under-confidence. The model is more uncertain about too many results, assigning them lower probabilities when in reality the favorites should have had higher probabilities.
Overconfident: under 0.85 · Calibrated: 0.85 to 1.15 · Underconfident: 1.15 and up.
Calibration error (ECE): Calibration error (ECE) checks whether the model's probabilities mean what they say. ECE is calculated as the average weighted gap between the model's stated chances and how often the predicted outcome actually occurred. The smaller the ECE, the more confident we are about the model's probabilities. The gold line represents the noise ceiling, which is the amount of error that luck can produce on its own even if the probabilities are perfectly calibrated. Values below the noise ceiling indicate that the model's error is no larger than chance alone would produce. Values above the noice ceiling point to a genuine calibration issue since the error is larger than luck could explain.
Well Within Noise: under 0.09 · Within Noise: 0.09 to 0.19 · Above Noise: 0.19 to 0.38 · Well Above Noise: 0.38 and up.

Probability calibration

0.22

Well Calibrated

0.010.050.11

Calibration slope

Ideal

1.30

Underconfident

0.51.001.5

Calibration error (ECE)

Noise ceiling

0.042

Well Within Noise

00.1900.5

Season Trends

How each metric evolved across the season - Elo rating, actual wins, simulated final wins, playoff probability, and division-title probability - day by day. Select a division to see all five charts for its teams.

Elo Through the Playoffs

How each playoff team's Elo rating evolved as the postseason unfolded. Elo Progression traces each team's game-by-game Elo rating through their playoff run. Net Elo Change summarizes the difference in Elo rating between the beginning and end of the playoffs for each team.

Stochastic Playoff Outcomes

How we would have expected the postseason to play out at the beginning of the season according to the simulation. The table summarizes each team's chances of advancing to each round. Individual matchup heat maps for each round are displayed using the subsequent buttons. The top percentage in each cell represents each team's winning percentage against the corresponding opponent. The bottom percentage represents how often that specific matchup occurred during that round in the simulation.

Team	Made Playoffs	Won Championship Game
Buffalo Bills	60.03%	33.84%
Kansas City Chiefs	36.79%	19.75%
San Diego Chargers	33.89%	17.01%
Oakland Raiders	26.39%	12.44%
Boston Patriots	18.49%	8.19%
New York Jets	13.48%	5.29%
Houston Oilers	7.95%	2.61%
Denver Broncos	2.93%	0.87%
Miami Dolphins	0.06%	<0.01%

Loser → ↓ Winner	Denver Broncos	Kansas City Chiefs	Oakland Raiders	San Diego Chargers	Boston Patriots	Buffalo Bills	Houston Oilers	Miami Dolphins	New York Jets
Boston Patriots	65.7%0.52%	41.1%6.69%	46.5%5.02%	44.2%6.26%
Buffalo Bills	76.5%1.80%	52.7%21.76%	59.0%16.24%	56.4%20.24%
Houston Oilers	52.5%0.18%	29.8%3.16%	35.7%1.79%	33.2%2.81%
Miami Dolphins		5.0%0.02%	16.7%0.01%	4.2%0.02%
New York Jets	58.2%0.43%	36.7%5.16%	41.6%3.33%	38.7%4.55%
Denver Broncos					34.3%0.52%	23.5%1.80%	47.5%0.18%		41.8%0.43%
Kansas City Chiefs					58.9%6.69%	47.3%21.76%	70.2%3.16%	95.0%0.02%	63.3%5.16%
Oakland Raiders					53.5%5.02%	41.0%16.24%	64.3%1.79%	83.3%0.01%	58.4%3.33%
San Diego Chargers					55.8%6.26%	43.6%20.24%	66.8%2.81%	95.8%0.02%	61.3%4.55%

Actual Bracket Simulation

Team	Won Championship Game	Actual Outcome
Kansas City Chiefs	58.03%	Won Championship Game

Loser → ↓ Winner	Kansas City Chiefs	Boston Patriots
Boston Patriots	42.0%100.00%
Kansas City Chiefs		58.0%100.00%

Most-Likely Championship Paths

For each playoff team, what was the most likely path they had to the championship across all simulations? Tiles represent the opponent they faced and defeated the most often in each round.

Kansas City Chiefs 58.03% chance to win

Championship Game

vs. Boston Patriots

Matchup

100.00%

Win Prob

58.03%

Boston Patriots 41.97% chance to win

Championship Game

vs. Kansas City Chiefs

Matchup

100.00%

Win Prob

41.97%

Regular Season Games

Summary of every regular-season game played this season.

Filter by Team:

Date	Opponent	Score	Pre Elo	Opp Elo	Win %	Loss %	Elo Δ	Record
1966-09-10	@ San Diego Chargers	L 0-24	1524.49	1580.43	34.57%	57.74%	-5.78	0-1
1966-09-18	@ Denver Broncos	W 24-10	1518.71	1441.84	52.98%	39.06%	+4.96	1-1
1966-09-25	Kansas City Chiefs	L 24-43	1523.67	1572.38	42.95%	48.98%	-6.32	1-2
1966-10-02	New York Jets	T 24-24	1517.35	1513.47	50.47%	41.49%	-0.07	1-2
1966-10-08	@ Buffalo Bills	W 20-10	1517.28	1603.77	30.83%	61.80%	+6.43	2-2
1966-10-23	San Diego Chargers	W 35-17	1523.71	1590.96	40.37%	51.62%	+7.30	3-2
1966-10-30	Oakland Raiders	W 24-21	1531.01	1542.85	48.22%	43.70%	+2.56	4-2
1966-11-06	Denver Broncos	L 10-17	1533.57	1412.82	66.12%	26.96%	-5.74	4-3
1966-11-13	Houston Oilers	W 27-21	1527.83	1460.21	59.31%	33.10%	+2.77	5-3
1966-11-20	@ Kansas City Chiefs	T 27-27	1530.60	1586.65	34.55%	57.75%	+0.19	5-3
1966-11-27	@ Miami Dolphins	W 20-14	1530.79	1274.13	75.13%	19.23%	+1.59	6-3
1966-12-04	Buffalo Bills	W 14-3	1532.38	1618.45	37.83%	54.27%	+5.98	7-3
1966-12-11	@ Houston Oilers	W 38-14	1538.36	1449.79	54.62%	37.50%	+6.26	8-3
1966-12-17	@ New York Jets	L 28-38	1544.62	1492.15	49.52%	42.42%	-5.24	8-4
1966-09-04	@ San Diego Chargers	L 7-27	1608.90	1573.36	47.09%	44.82%	-7.07	0-1
1966-09-11	Kansas City Chiefs	L 20-42	1601.83	1556.29	56.31%	35.90%	-8.75	0-2
1966-09-18	Miami Dolphins	W 58-24	1593.08	1271.53	85.26%	11.04%	+2.13	1-2
1966-09-25	Houston Oilers	W 27-20	1595.21	1472.46	66.36%	26.74%	+2.42	2-2
1966-10-02	@ Kansas City Chiefs	W 29-14	1597.63	1578.70	44.70%	47.20%	+6.14	3-2
1966-10-08	Boston Patriots	L 10-20	1603.77	1517.28	61.80%	30.83%	-6.44	3-3
1966-10-16	San Diego Chargers	T 17-17	1597.33	1590.88	50.83%	41.14%	-0.08	3-3
1966-10-30	@ New York Jets	W 33-23	1597.25	1504.67	55.18%	36.97%	+3.99	4-3
1966-11-06	@ Miami Dolphins	W 29-0	1601.24	1280.86	80.99%	14.43%	+2.60	5-3
1966-11-13	New York Jets	W 14-3	1603.84	1500.69	63.93%	28.90%	+3.28	6-3
1966-11-20	@ Houston Oilers	W 42-20	1607.12	1457.43	62.82%	29.90%	+4.80	7-3
1966-11-24	@ Oakland Raiders	W 31-10	1611.92	1557.18	49.84%	42.10%	+6.53	8-3
1966-12-04	@ Boston Patriots	L 3-14	1618.45	1532.38	54.27%	37.83%	-5.98	8-4
1966-12-18	Denver Broncos	W 38-21	1612.47	1416.99	74.52%	19.73%	+2.77	9-4
1966-09-03	@ Houston Oilers	L 7-45	1450.28	1462.44	40.35%	51.65%	-8.44	0-1
1966-09-18	Boston Patriots	L 10-24	1441.84	1518.71	39.06%	52.98%	-4.97	0-2
1966-09-25	New York Jets	L 7-16	1436.87	1509.43	39.65%	52.37%	-4.04	0-3
1966-10-02	Houston Oilers	W 40-38	1432.83	1470.04	44.58%	47.33%	+2.25	1-3
1966-10-08	@ Kansas City Chiefs	L 10-37	1435.08	1572.57	25.19%	68.13%	-4.48	1-4
1966-10-16	@ Miami Dolphins	L 7-24	1430.60	1265.65	64.76%	28.17%	-8.76	1-5
1966-10-23	Kansas City Chiefs	L 10-56	1421.84	1568.50	30.25%	62.43%	-7.03	1-6
1966-10-30	@ San Diego Chargers	L 17-24	1414.81	1583.66	22.12%	71.70%	-1.99	1-7
1966-11-06	@ Boston Patriots	W 17-10	1412.82	1533.57	26.96%	66.12%	+5.73	2-7
1966-11-20	Oakland Raiders	L 3-17	1418.55	1553.12	31.68%	60.86%	-4.05	2-8
1966-11-27	San Diego Chargers	W 20-17	1414.50	1572.51	28.95%	63.88%	+3.63	3-8
1966-12-04	Miami Dolphins	W 17-7	1418.13	1272.53	69.08%	24.37%	+2.64	4-8
1966-12-11	@ Oakland Raiders	L 10-28	1420.77	1550.47	26.00%	67.20%	-3.78	4-9
1966-12-18	@ Buffalo Bills	L 21-38	1416.99	1612.47	19.73%	74.52%	-2.76	4-10
1966-09-03	Denver Broncos	W 45-7	1462.44	1450.28	51.65%	40.35%	+8.44	1-0
1966-09-10	Oakland Raiders	W 31-0	1470.88	1551.61	38.54%	53.52%	+9.91	2-0
1966-09-18	@ New York Jets	L 13-52	1480.79	1501.10	39.24%	52.80%	-8.33	2-1
1966-09-25	@ Buffalo Bills	L 20-27	1472.46	1595.21	26.74%	66.36%	-2.42	2-2
1966-10-02	@ Denver Broncos	L 38-40	1470.04	1432.83	47.33%	44.58%	-2.24	2-3
1966-10-16	New York Jets	W 24-0	1467.80	1515.31	43.12%	48.81%	+8.00	3-3
1966-10-23	Miami Dolphins	L 13-20	1475.80	1274.41	75.13%	19.23%	-6.45	3-4
1966-10-30	@ Kansas City Chiefs	L 23-48	1469.35	1575.52	28.56%	64.31%	-4.89	3-5
1966-11-06	@ Oakland Raiders	L 23-38	1464.46	1540.30	32.10%	60.40%	-4.25	3-6
1966-11-13	@ Boston Patriots	L 21-27	1460.21	1527.83	33.10%	59.31%	-2.78	3-7
1966-11-20	Buffalo Bills	L 20-42	1457.43	1607.12	29.90%	62.82%	-4.80	3-8
1966-12-04	San Diego Chargers	L 22-28	1452.63	1568.88	33.93%	58.42%	-2.84	3-9
1966-12-11	Boston Patriots	L 14-38	1449.79	1538.36	37.50%	54.62%	-6.25	3-10
1966-12-18	@ Miami Dolphins	L 28-29	1443.54	1269.41	65.89%	27.16%	-2.16	3-11
1966-09-11	@ Buffalo Bills	W 42-20	1556.29	1601.83	35.90%	56.31%	+8.75	1-0
1966-09-18	@ Oakland Raiders	W 32-10	1565.04	1541.70	45.33%	46.57%	+7.34	2-0
1966-09-25	@ Boston Patriots	W 43-24	1572.38	1523.67	48.98%	42.95%	+6.32	3-0
1966-10-02	Buffalo Bills	L 14-29	1578.70	1597.63	47.20%	44.70%	-6.13	3-1
1966-10-08	Denver Broncos	W 37-10	1572.57	1435.08	68.13%	25.19%	+4.48	4-1
1966-10-16	Oakland Raiders	L 13-34	1577.05	1531.67	56.29%	35.92%	-8.55	4-2
1966-10-23	@ Denver Broncos	W 56-10	1568.50	1421.84	62.43%	30.25%	+7.02	5-2
1966-10-30	Houston Oilers	W 48-23	1575.52	1469.35	64.31%	28.56%	+4.89	6-2
1966-11-06	San Diego Chargers	W 24-14	1580.41	1585.66	49.17%	42.77%	+4.57	7-2
1966-11-13	Miami Dolphins	W 34-16	1584.98	1278.26	84.22%	11.86%	+1.67	8-2
1966-11-20	Boston Patriots	T 27-27	1586.65	1530.60	57.75%	34.55%	-0.18	8-2
1966-11-27	@ New York Jets	W 32-24	1586.47	1499.87	54.35%	37.76%	+3.64	9-2
1966-12-11	@ Miami Dolphins	W 19-18	1590.11	1269.90	80.97%	14.44%	+0.48	10-2
1966-12-18	@ San Diego Chargers	W 27-17	1590.59	1575.98	44.09%	47.82%	+5.07	11-2
1966-09-02	Oakland Raiders	L 14-23	1275.00	1549.81	17.75%	76.91%	-1.80	0-1
1966-09-09	New York Jets	L 14-19	1273.20	1499.43	21.92%	71.93%	-1.67	0-2
1966-09-18	@ Buffalo Bills	L 24-58	1271.53	1593.08	11.04%	85.26%	-2.13	0-3
1966-10-02	@ San Diego Chargers	L 10-44	1269.40	1590.52	11.07%	85.23%	-2.13	0-4
1966-10-09	@ Oakland Raiders	L 10-21	1267.27	1530.05	14.59%	80.79%	-1.62	0-5
1966-10-16	Denver Broncos	W 24-7	1265.65	1430.60	28.17%	64.76%	+8.76	1-5
1966-10-23	@ Houston Oilers	W 20-13	1274.41	1475.80	19.23%	75.13%	+6.45	2-5
1966-11-06	Buffalo Bills	L 0-29	1280.86	1601.24	14.43%	80.99%	-2.60	2-6
1966-11-13	@ Kansas City Chiefs	L 16-34	1278.26	1584.98	11.86%	84.22%	-1.67	2-7
1966-11-20	@ New York Jets	L 13-30	1276.59	1497.41	17.65%	77.03%	-2.46	2-8
1966-11-27	Boston Patriots	L 14-20	1274.13	1530.79	19.23%	75.13%	-1.60	2-9
1966-12-04	@ Denver Broncos	L 7-17	1272.53	1418.13	24.37%	69.08%	-2.63	2-10
1966-12-11	Kansas City Chiefs	L 18-19	1269.90	1590.11	14.44%	80.97%	-0.49	2-11
1966-12-18	Houston Oilers	W 29-28	1269.41	1443.54	27.16%	65.89%	+2.16	3-11
1966-09-09	@ Miami Dolphins	W 19-14	1499.43	1273.20	71.93%	21.92%	+1.67	1-0
1966-09-18	Houston Oilers	W 52-13	1501.10	1480.79	52.80%	39.24%	+8.33	2-0
1966-09-25	@ Denver Broncos	W 16-7	1509.43	1436.87	52.37%	39.65%	+4.04	3-0
1966-10-02	@ Boston Patriots	T 24-24	1513.47	1517.35	41.49%	50.47%	+0.07	3-0
1966-10-08	San Diego Chargers	W 17-16	1513.54	1592.66	38.76%	53.30%	+1.77	4-0
1966-10-16	@ Houston Oilers	L 0-24	1515.31	1467.80	48.81%	43.12%	-8.00	4-1
1966-10-23	Oakland Raiders	L 21-24	1507.31	1540.22	45.19%	46.71%	-2.64	4-2
1966-10-30	Buffalo Bills	L 23-33	1504.67	1597.25	36.97%	55.18%	-3.98	4-3
1966-11-13	@ Buffalo Bills	L 3-14	1500.69	1603.84	28.90%	63.93%	-3.28	4-4
1966-11-20	Miami Dolphins	W 30-13	1497.41	1276.59	77.03%	17.65%	+2.46	5-4
1966-11-27	Kansas City Chiefs	L 24-32	1499.87	1586.47	37.76%	54.35%	-3.64	5-5
1966-12-03	@ Oakland Raiders	T 28-28	1496.23	1550.65	34.76%	57.53%	+0.18	5-5
1966-12-11	@ San Diego Chargers	L 27-42	1496.41	1571.72	32.16%	60.33%	-4.26	5-6
1966-12-17	Boston Patriots	W 38-28	1492.15	1544.62	42.42%	49.52%	+5.23	6-6
1966-09-02	@ Miami Dolphins	W 23-14	1549.81	1275.00	76.91%	17.75%	+1.80	1-0
1966-09-10	@ Houston Oilers	L 0-31	1551.61	1470.88	53.52%	38.54%	-9.91	1-1
1966-09-18	Kansas City Chiefs	L 10-32	1541.70	1565.04	46.57%	45.33%	-7.34	1-2
1966-09-25	San Diego Chargers	L 20-29	1534.36	1586.21	42.51%	49.43%	-4.31	1-3
1966-10-09	Miami Dolphins	W 21-10	1530.05	1267.27	80.79%	14.59%	+1.62	2-3
1966-10-16	@ Kansas City Chiefs	W 34-13	1531.67	1577.05	35.92%	56.29%	+8.55	3-3
1966-10-23	@ New York Jets	W 24-21	1540.22	1507.31	46.71%	45.19%	+2.63	4-3
1966-10-30	@ Boston Patriots	L 21-24	1542.85	1531.01	43.70%	48.22%	-2.55	4-4
1966-11-06	Houston Oilers	W 38-23	1540.30	1464.46	60.40%	32.10%	+4.25	5-4
1966-11-13	@ San Diego Chargers	W 41-19	1544.55	1581.08	37.07%	55.07%	+8.57	6-4
1966-11-20	@ Denver Broncos	W 17-3	1553.12	1418.55	60.86%	31.68%	+4.06	7-4
1966-11-24	Buffalo Bills	L 10-31	1557.18	1611.92	42.10%	49.84%	-6.53	7-5
1966-12-03	New York Jets	T 28-28	1550.65	1496.23	57.53%	34.76%	-0.18	7-5
1966-12-11	Denver Broncos	W 28-10	1550.47	1420.77	67.20%	26.00%	+3.77	8-5
1966-09-04	Buffalo Bills	W 27-7	1573.36	1608.90	44.82%	47.09%	+7.07	1-0
1966-09-10	Boston Patriots	W 24-0	1580.43	1524.49	57.74%	34.57%	+5.78	2-0
1966-09-25	@ Oakland Raiders	W 29-20	1586.21	1534.36	49.43%	42.51%	+4.31	3-0
1966-10-02	Miami Dolphins	W 44-10	1590.52	1269.40	85.23%	11.07%	+2.14	4-0
1966-10-08	@ New York Jets	L 16-17	1592.66	1513.54	53.30%	38.76%	-1.78	4-1
1966-10-16	@ Buffalo Bills	T 17-17	1590.88	1597.33	41.14%	50.83%	+0.08	4-1
1966-10-23	@ Boston Patriots	L 17-35	1590.96	1523.71	51.62%	40.37%	-7.30	4-2
1966-10-30	Denver Broncos	W 24-17	1583.66	1414.81	71.70%	22.12%	+2.00	5-2
1966-11-06	@ Kansas City Chiefs	L 14-24	1585.66	1580.41	42.77%	49.17%	-4.58	5-3
1966-11-13	Oakland Raiders	L 19-41	1581.08	1544.55	55.07%	37.07%	-8.57	5-4
1966-11-27	@ Denver Broncos	L 17-20	1572.51	1414.50	63.88%	28.95%	-3.63	5-5
1966-12-04	@ Houston Oilers	W 28-22	1568.88	1452.63	58.42%	33.93%	+2.84	6-5
1966-12-11	New York Jets	W 42-27	1571.72	1496.41	60.33%	32.16%	+4.26	7-5
1966-12-18	Kansas City Chiefs	L 17-27	1575.98	1590.59	47.82%	44.09%	-5.07	7-6

Playoff Games

Every playoff game from the selected team's perspective.

Date	Opponent	Score	Pre Elo	Opp Elo	Win %	Loss %	Elo Δ	Record
1967-01-01	Kansas City Chiefs	L 7-31	1615.24	1595.66	56.75%	43.25%	-8.60	0-1
1967-01-01	@ Buffalo Bills	W 31-7	1595.66	1615.24	43.25%	56.75%	+8.59	1-0

Biggest Upsets

The 25 biggest upsets of the seasons, ranked by lowest pregame win probability. An asterisk (*) after the date indicates a playoff game.

#	Date	Underdog Win %	Winning Team			Losing Team
#	Date	Underdog Win %	Team	Elo	Score	Team	Elo	Score
1	1966-10-23	19.23%	Miami Dolphins	1274.41	20	@ Houston Oilers	1475.80	13
2	1966-11-06	26.96%	Denver Broncos	1412.82	17	@ Boston Patriots	1533.57	10
3	1966-12-18	27.16%	@ Miami Dolphins	1269.41	29	Houston Oilers	1443.54	28
4	1966-10-16	28.17%	@ Miami Dolphins	1265.65	24	Denver Broncos	1430.60	7
5	1966-11-27	28.95%	@ Denver Broncos	1414.50	20	San Diego Chargers	1572.51	17
6	1966-10-08	30.83%	Boston Patriots	1517.28	20	@ Buffalo Bills	1603.77	10
7	1966-09-11	35.90%	Kansas City Chiefs	1556.29	42	@ Buffalo Bills	1601.83	20
8	1966-10-16	35.92%	Oakland Raiders	1531.67	34	@ Kansas City Chiefs	1577.05	13
9	1966-11-13	37.07%	Oakland Raiders	1544.55	41	@ San Diego Chargers	1581.08	19
10	1966-12-04	37.83%	@ Boston Patriots	1532.38	14	Buffalo Bills	1618.45	3
11	1966-09-10	38.54%	@ Houston Oilers	1470.88	31	Oakland Raiders	1551.61	0
12	1966-10-08	38.76%	@ New York Jets	1513.54	17	San Diego Chargers	1592.66	16
13	1966-10-23	40.37%	@ Boston Patriots	1523.71	35	San Diego Chargers	1590.96	17
14	1966-12-17	42.42%	@ New York Jets	1492.15	38	Boston Patriots	1544.62	28
15	1966-10-16	43.12%	@ Houston Oilers	1467.80	24	New York Jets	1515.31	0
16	1967-01-01 *	43.25%	Kansas City Chiefs	1595.66	31	@ Buffalo Bills	1615.24	7
17	1966-12-18	44.09%	Kansas City Chiefs	1590.59	27	@ San Diego Chargers	1575.98	17
18	1966-10-02	44.58%	@ Denver Broncos	1432.83	40	Houston Oilers	1470.04	38
19	1966-10-02	44.70%	Buffalo Bills	1597.63	29	@ Kansas City Chiefs	1578.70	14
20	1966-09-04	44.82%	@ San Diego Chargers	1573.36	27	Buffalo Bills	1608.90	7
21	1966-09-18	45.33%	Kansas City Chiefs	1565.04	32	@ Oakland Raiders	1541.70	10

Biggest Elo Changes

The 25 games that resulted in the largest shift in Elo rating. An asterisk (*) after the date indicates a playoff game.

#	Date	Elo Δ	Winning Team				Losing Team
#	Date	Elo Δ	Team	Score	Elo	Win %	Team	Score	Elo	Win %
1	1966-09-10	9.91	@ Houston Oilers	31	1470.88	38.54%	Oakland Raiders	0	1551.61	53.52%
2	1966-10-16	8.76	@ Miami Dolphins	24	1265.65	28.17%	Denver Broncos	7	1430.60	64.76%
3	1966-09-11	8.75	Kansas City Chiefs	42	1556.29	35.90%	@ Buffalo Bills	20	1601.83	56.31%
4	1967-01-01 *	8.60	Kansas City Chiefs	31	1595.66	43.25%	@ Buffalo Bills	7	1615.24	56.75%
5	1966-11-13	8.57	Oakland Raiders	41	1544.55	37.07%	@ San Diego Chargers	19	1581.08	55.07%
6	1966-10-16	8.55	Oakland Raiders	34	1531.67	35.92%	@ Kansas City Chiefs	13	1577.05	56.29%
7	1966-09-03	8.44	@ Houston Oilers	45	1462.44	51.65%	Denver Broncos	7	1450.28	40.35%
8	1966-09-18	8.33	@ New York Jets	52	1501.10	52.80%	Houston Oilers	13	1480.79	39.24%
9	1966-10-16	8.00	@ Houston Oilers	24	1467.80	43.12%	New York Jets	0	1515.31	48.81%
10	1966-09-18	7.34	Kansas City Chiefs	32	1565.04	45.33%	@ Oakland Raiders	10	1541.70	46.57%
11	1966-10-23	7.30	@ Boston Patriots	35	1523.71	40.37%	San Diego Chargers	17	1590.96	51.62%
12	1966-09-04	7.07	@ San Diego Chargers	27	1573.36	44.82%	Buffalo Bills	7	1608.90	47.09%
13	1966-10-23	7.03	Kansas City Chiefs	56	1568.50	62.43%	@ Denver Broncos	10	1421.84	30.25%
14	1966-11-24	6.53	Buffalo Bills	31	1611.92	49.84%	@ Oakland Raiders	10	1557.18	42.10%
15	1966-10-23	6.45	Miami Dolphins	20	1274.41	19.23%	@ Houston Oilers	13	1475.80	75.13%
16	1966-10-08	6.44	Boston Patriots	20	1517.28	30.83%	@ Buffalo Bills	10	1603.77	61.80%
17	1966-09-25	6.32	Kansas City Chiefs	43	1572.38	48.98%	@ Boston Patriots	24	1523.67	42.95%
18	1966-12-11	6.26	Boston Patriots	38	1538.36	54.62%	@ Houston Oilers	14	1449.79	37.50%
19	1966-10-02	6.14	Buffalo Bills	29	1597.63	44.70%	@ Kansas City Chiefs	14	1578.70	47.20%
20	1966-12-04	5.98	@ Boston Patriots	14	1532.38	37.83%	Buffalo Bills	3	1618.45	54.27%
21	1966-09-10	5.78	@ San Diego Chargers	24	1580.43	57.74%	Boston Patriots	0	1524.49	34.57%
22	1966-11-06	5.74	Denver Broncos	17	1412.82	26.96%	@ Boston Patriots	10	1533.57	66.12%
23	1966-12-17	5.24	@ New York Jets	38	1492.15	42.42%	Boston Patriots	28	1544.62	49.52%
24	1966-12-18	5.07	Kansas City Chiefs	27	1590.59	44.09%	@ San Diego Chargers	17	1575.98	47.82%
25	1966-09-18	4.97	Boston Patriots	24	1518.71	52.98%	@ Denver Broncos	10	1441.84	39.06%