The Relativity Index

Final Statistics for the 2010 Season

About the Relativity Index
The Relativity Index measures the performance of each team relative to the performance of its opponents in all other games. Essentially, it adjusts for the quality of competition each team faces, and spits out a number that tells us how greatly a team overachieved, or how badly a team underachieved, relative to the quality of competition.

For example, if Team A scores 25.0 PPG, and its opponents surrender 20 PPG in all of their other contests, Team A is +5.0 PPG on offense. If Team A surrenders 20 PPG, and its opponents score 25 PPG in all of their other contests, Team A is +5.0 on defense. This equates to a total Relativity Index score of +10.0 PPG. In other words, Team A is 10 points better than the average performance of its opponents.

Rank	The Relativity Index_R	Team	PS	OPA	PS-OPA	PA	OPS	OPS-PA	REL
1 ∼	1	New England	32.38	19.56	12.81	19.56	21.43	1.86	14.68
19 ↓ 2	19	Miami	17.06	20.98	-3.92	20.81	22.72	1.91	- 2.01
23 ∼	23	Minnesota	17.56	21.67	-4.11	21.75	22.68	0.93	- 3.18
26 ↓ 1	26	Jacksonville	22.06	24.00	-1.94	26.19	23.21	-2.98	- 4.92
16 ↓ 4	16	Kansas City	22.88	24.43	-1.56	20.38	22.18	1.81	0.25
18 ↑ 4	18	Houston	24.38	22.89	1.48	26.69	23.68	-3.00	- 1.52
9 ∼	9	Indianapolis	27.19	23.51	3.68	24.25	23.87	-0.38	3.30
15 ∼	15	Detroit	22.62	20.71	1.91	23.06	21.91	-1.16	0.75
2 ∼	2	Green Bay	24.25	21.57	2.68	15.00	22.74	7.74	10.42
13 ∼	13	N.Y. Giants	24.62	23.33	1.29	21.69	22.11	0.42	1.72
10 ↓ 2	10	New Orleans	24.00	21.53	2.47	19.19	20.09	0.90	3.38
7 ↑ 3	7	N.Y. Jets	22.94	21.37	1.57	19.00	22.03	3.03	4.60
12 ↑ 4	12	Oakland	25.62	22.50	3.12	23.19	22.22	-0.97	2.15
8 ↓ 1	8	Philadelphia	27.44	22.02	5.42	23.56	22.59	-0.97	4.45
3 ∼	3	Pittsburgh	23.44	20.85	2.59	14.50	21.95	7.45	10.04
5 ∼	5	San Diego	27.56	23.67	3.90	20.12	22.90	2.78	6.67
24 ↑ 3	24	San Francisco	19.06	22.69	-3.63	21.62	21.55	-0.07	- 3.70
29 ∼	29	Seattle	19.38	22.31	-2.94	25.44	20.87	-4.57	- 7.51
27 ↓ 3	27	St. Louis	18.06	23.67	-5.61	20.50	21.19	0.69	- 4.92
6 ∼	6	Baltimore	22.31	21.63	0.68	16.88	21.79	4.92	5.60
4 ∼	4	Atlanta	25.88	20.75	5.13	18.00	20.48	2.48	7.61
30 ∼	30	Denver	21.50	22.32	-0.82	29.44	22.26	-7.18	- 7.99
31 ∼	31	Arizona	18.06	23.09	-5.03	27.12	20.47	-6.65	- 11.69
17 ↑ 1	17	Tampa Bay	21.31	21.50	-0.18	19.88	20.21	0.34	0.16
20 ∼	20	Cincinnati	20.12	19.93	0.20	24.69	22.01	-2.68	- 2.48
11 ∼	11	Chicago	20.88	22.11	-1.24	17.88	22.07	4.19	2.96
25 ↑ 1	25	Washington	18.88	22.95	-4.08	23.56	23.28	-0.28	- 4.36
32 ∼	32	Carolina	12.25	21.14	-8.89	25.50	21.17	-4.33	- 13.22
14 ∼	14	Tennessee	22.25	23.88	-1.63	21.19	24.12	2.94	1.30
28 ∼	28	Buffalo	17.69	20.31	-2.62	26.56	21.89	-4.67	- 7.29
22 ↓ 1	22	Dallas	24.62	22.29	2.33	27.25	22.47	-4.78	- 2.44
21 ↓ 2	21	Cleveland	16.94	20.85	-3.91	20.75	21.88	1.13	- 2.78

Quality Stats

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