Tuesday, September 11, 2007

Power Rankings - Week 1

The power rankings for this site were developed in this article. The idea behind them is simple: if each team played one home game and one away game against every other team in the league, who would be the most successful?

The first power rankings use linear regression to predict the final score margins of each such game. The score you see along with the rankings is the sum of all of those expected margins.

The second power rankings use logistic regression to predict the probability of winning. The score you see along with the rankings is the expected win total over a 16-game season based on the expected winning percentages over the 62 games (i.e. the sum of those probabilities).




































Power Rankings, Linear Regression
RankTeamExpected Point Differential
1NE13.7325
2IND12.6659
3HOU11.3791
4PIT10.5062
5DEN9.8315
6DAL9.6199
7CAR7.1694
8MIN5.5084
9DET5.2108
10SEA4.9286
11PHI3.8638
12WAS3.8512
13SD3.3387
14JAX3.0969
15CIN1.6938
16ARI0.9178
17SF-0.9178
18BAL-1.6938
19TEN-3.0969
20CHI-3.3387
21MIA-3.8512
22GB-3.8638
23TB-4.9286
24OAK-5.2108
25ATL-5.5084
26STL-7.1694
27NYG-9.6199
28BUF-9.8315
29CLE-10.5062
30KC-11.3791
31NO-12.6659
32NYJ-13.7325




































Power Rankings, Logistic Regression
RankTeamExpected Wins
1IND13.1524
2NE13.1070
3PIT12.3465
4DEN12.1270
5DAL12.0315
6HOU11.9760
7CAR11.4361
8MIN10.7716
9SEA10.2733
10DET10.2539
11PHI9.6394
12WAS9.5602
13JAX9.4403
14SD8.9667
15CIN8.3876
16ARI8.1964
17SF7.8036
18BAL7.6124
19CHI7.0333
20TEN6.5597
21MIA6.4398
22GB6.3606
23OAK5.7461
24TB5.7267
25ATL5.2284
26STL4.5639
27KC4.0240
28NYG3.9685
29BUF3.8730
30CLE3.6535
31NYJ2.8930
32NO2.8476

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