2014 MLB Relative Power Index (RPI),as of the games of August 2,2014

MLB RPI Rankings
RK	TEAM	RPI	W	L	PCT	SOS	PWR	RS	RA	EXPW-L	EXPWP
1	Oakland Athletics	.530	67	42	.615	.502	1	543	377	74-35	.675
2	Los Angeles Angels	.528	65	44	.596	.506	2	526	441	64-45	.587
3	Baltimore Orioles	.520	61	48	.560	.507	7	457	429	58-51	.532
4	Detroit Tigers	.517	60	47	.561	.502	3	506	460	59-48	.548
5	Toronto Blue Jays	.513	60	52	.536	.506	13	515	479	60-52	.536
6	St. Louis Cardinals	.511	58	51	.532	.504	10	406	405	55-54	.501
7	Kansas City Royals	.509	56	53	.514	.507	16	430	432	54-55	.498
8	Los Angeles Dodgers	.509	63	48	.568	.489	6	462	405	63-48	.565
9	Seattle Mariners	.508	57	53	.518	.504	15	421	366	63-47	.570
10	Milwaukee Brewers	.508	61	50	.550	.494	5	485	455	59-52	.532
11	Pittsburgh Pirates	.507	59	51	.536	.497	11	466	456	56-54	.511
12	Washington Nationals	.506	59	49	.546	.493	4	454	378	64-44	.591
13	New York Yankees	.506	56	53	.514	.503	12	438	467	51-58	.468
14	Cleveland Indians	.504	55	55	.500	.505	18	493	477	57-53	.516
15	Tampa Bay Rays	.504	54	56	.491	.508	14	434	433	55-55	.501
16	San Francisco Giants	.503	59	51	.536	.491	8	426	403	58-52	.528
17	Cincinnati Reds	.501	55	55	.500	.502	17	410	397	57-53	.516
18	Atlanta Braves	.498	58	53	.523	.490	9	418	408	57-54	.512
19	Chicago White Sox	.495	54	57	.486	.498	20	490	502	54-57	.488
20	New York Mets	.494	53	57	.482	.499	21	428	416	57-53	.514
21	Miami Marlins	.492	54	56	.491	.492	19	447	469	52-58	.476
22	Boston Red Sox	.490	49	61	.445	.505	22	420	476	48-62	.438
23	Minnesota Twins	.489	49	60	.450	.503	24	451	496	49-60	.453
24	Houston Astros	.489	46	65	.414	.514	29	435	527	45-66	.405
25	San Diego Padres	.484	50	60	.455	.493	23	353	375	52-58	.470
26	Philadelphia Phillies	.482	49	62	.441	.496	25	428	500	47-64	.423
27	Texas Rangers	.479	43	67	.391	.508	30	439	568	41-69	.374
28	Arizona Diamondbacks	.478	48	63	.432	.493	26	444	523	46-65	.419
29	Chicago Cubs	.476	46	63	.422	.494	27	422	465	49-60	.452
30	Colorado Rockies	.471	44	66	.400	.495	28	513	575	49-61	.443

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.