2014 MLB Relative Power Index (RPI),as of the games of July 12,2014

MLB RPI Rankings
RK	TEAM	RPI	W	L	PCT	SOS	PWR	RS	RA	EXPW-L	EXPWP
1	Oakland Athletics	.535	58	36	.617	.508	1	462	320	64-30	.676
2	Los Angeles Angels	.528	56	37	.602	.503	0	468	382	56-37	.600
3	Detroit Tigers	.524	53	37	.589	.503	0	435	382	51-39	.565
4	St. Louis Cardinals	.516	52	43	.547	.506	0	358	335	51-44	.533
5	Seattle Mariners	.511	51	43	.543	.500	0	377	317	55-39	.586
6	Toronto Blue Jays	.510	49	46	.516	.508	0	431	409	50-45	.526
7	Cincinnati Reds	.509	50	44	.532	.501	0	371	346	50-44	.535
8	Baltimore Orioles	.509	51	42	.548	.495	10	402	378	49-44	.531
9	Milwaukee Brewers	.508	52	43	.547	.494	0	412	404	48-47	.510
10	Washington Nationals	.507	50	42	.543	.495	0	377	323	53-39	.577
11	Kansas City Royals	.507	47	46	.505	.507	0	378	377	47-46	.501
12	Pittsburgh Pirates	.506	49	45	.521	.501	0	388	387	47-47	.501
13	Atlanta Braves	.506	51	43	.543	.493	0	352	343	48-46	.513
14	New York Yankees	.504	47	46	.505	.504	0	374	409	42-51	.455
15	San Francisco Giants	.504	51	43	.543	.491	0	363	344	50-44	.527
16	Los Angeles Dodgers	.504	53	43	.552	.488	0	403	354	54-42	.564
17	Cleveland Indians	.502	46	47	.495	.505	0	414	423	46-47	.489
18	Minnesota Twins	.494	43	50	.462	.505	0	389	413	44-49	.470
19	Chicago White Sox	.494	45	50	.474	.501	0	409	431	45-50	.474
20	New York Mets	.492	44	50	.468	.500	0	374	363	48-46	.515
21	Tampa Bay Rays	.491	43	53	.448	.505	0	374	403	44-52	.463
22	Houston Astros	.490	40	55	.421	.513	0	368	445	39-56	.406
23	Boston Red Sox	.490	42	52	.447	.504	0	356	405	41-53	.436
24	Miami Marlins	.485	44	49	.473	.489	0	395	406	45-48	.486
25	Philadelphia Phillies	.484	42	52	.447	.496	0	364	404	42-52	.448
26	Texas Rangers	.482	38	56	.404	.508	0	384	489	36-58	.381
27	Chicago Cubs	.482	40	53	.430	.499	0	359	386	43-50	.464
28	San Diego Padres	.479	41	53	.436	.494	0	279	328	39-55	.420
29	Colorado Rockies	.476	40	54	.426	.493	0	450	493	43-51	.454
30	Arizona Diamondbacks	.475	40	55	.421	.493	0	372	439	40-55	.418

Glossary

• W: Wins
• L: Losses
• PCT: Winning percentage
• RPI: Relative Power Index+
• SOS: Strength of schedule

• PWR: ESPN Power Ranking
• RS: Runs scored
• RA: Runs allowed
• EXW-L: Expected W-L*
• EXWP: Expected winning percentage*

+The basic formula is 25% team winning percentage, 50% opponents' average winning percentage, and 25% opponents' opponents' average winning percentage.
*ExW-L and ExWP are derived from Bill James' Pythagorean theorem of baseball: Runs scored [squared] / (Runs scored [squared] + runs allowed [squared]). This formula was designed to relate a team's runs scored and runs allowed to its won-lost record.