2014 MLB Relative Power Index (RPI),as of the games of July 8,2014

MLB RPI Rankings
RK	TEAM	RPI	W	L	PCT	SOS	PWR	RS	RA	EXPW-L	EXPWP
1	Oakland Athletics	.538	57	33	.633	.506	1	450	305	62-28	.685
2	Los Angeles Angels	.525	52	37	.584	.505	0	437	367	52-37	.586
3	Detroit Tigers	.519	49	37	.570	.502	0	408	375	47-39	.542
4	St. Louis Cardinals	.513	49	42	.538	.505	0	335	316	48-43	.529
5	Milwaukee Brewers	.513	52	39	.571	.494	0	402	374	49-42	.536
6	Toronto Blue Jays	.511	48	44	.522	.508	0	413	386	49-43	.534
7	Seattle Mariners	.511	49	41	.544	.500	0	365	301	54-36	.595
8	Cincinnati Reds	.510	48	42	.533	.502	0	352	328	48-42	.535
9	Baltimore Orioles	.509	49	40	.551	.495	10	393	364	48-41	.538
10	Washington Nationals	.508	48	40	.545	.495	0	361	308	51-37	.579
11	Kansas City Royals	.508	46	43	.517	.505	0	367	350	47-42	.524
12	Pittsburgh Pirates	.506	47	43	.522	.501	0	366	370	45-45	.495
13	Atlanta Braves	.506	49	41	.544	.493	0	333	327	46-44	.509
14	San Francisco Giants	.504	49	41	.544	.490	0	352	334	47-43	.526
15	New York Yankees	.504	45	44	.506	.503	0	361	393	41-48	.458
16	Los Angeles Dodgers	.503	51	41	.554	.486	0	396	343	53-39	.571
17	Cleveland Indians	.503	44	45	.494	.506	0	392	405	43-46	.484
18	Chicago White Sox	.496	44	47	.484	.500	0	392	413	43-48	.474
19	Minnesota Twins	.492	40	49	.449	.506	0	366	401	40-49	.454
20	Tampa Bay Rays	.492	42	51	.452	.505	0	355	387	42-51	.457
21	Miami Marlins	.490	44	46	.489	.490	0	387	390	45-45	.496
22	Houston Astros	.488	38	54	.413	.514	0	354	431	37-55	.403
23	Boston Red Sox	.488	39	51	.433	.507	0	337	392	38-52	.425
24	New York Mets	.488	41	49	.456	.499	0	357	354	45-45	.504
25	Texas Rangers	.485	38	52	.422	.506	0	372	458	36-54	.397
26	Chicago Cubs	.482	38	51	.427	.500	0	341	363	42-47	.469
27	San Diego Padres	.481	40	50	.444	.494	0	269	316	38-52	.420
28	Philadelphia Phillies	.480	39	51	.433	.496	0	342	395	39-51	.428
29	Colorado Rockies	.476	38	53	.418	.495	0	435	479	41-50	.452
30	Arizona Diamondbacks	.473	38	54	.413	.493	0	366	431	39-53	.419

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.