2014 MLB Relative Power Index (RPI),as of the games of July 26,2014

MLB RPI Rankings
RK	TEAM	RPI	W	L	PCT	SOS	PWR	RS	RA	EXPW-L	EXPWP
1	Oakland Athletics	.533	64	39	.621	.504	1	515	351	70-33	.683
2	Los Angeles Angels	.528	62	41	.602	.504	2	506	416	61-42	.597
3	Detroit Tigers	.518	57	44	.564	.502	3	475	431	55-46	.548
4	Baltimore Orioles	.517	57	46	.553	.505	8	438	410	55-48	.533
5	St. Louis Cardinals	.512	55	48	.534	.504	6	384	374	53-50	.513
6	Toronto Blue Jays	.512	55	50	.524	.508	15	477	455	55-50	.524
7	Milwaukee Brewers	.511	59	46	.562	.493	10	464	433	56-49	.535
8	New York Yankees	.510	54	49	.524	.505	16	409	436	48-55	.468
9	Washington Nationals	.509	56	45	.554	.494	5	424	351	60-41	.593
10	Kansas City Royals	.508	53	50	.515	.506	17	413	407	52-51	.507
11	Seattle Mariners	.507	54	50	.519	.504	11	401	349	59-45	.569
12	Los Angeles Dodgers	.506	58	47	.552	.490	7	438	385	59-46	.564
13	Pittsburgh Pirates	.504	54	49	.524	.498	12	425	429	51-52	.495
14	San Francisco Giants	.504	57	47	.548	.490	4	408	381	56-48	.534
15	Cincinnati Reds	.503	52	51	.505	.503	13	391	381	53-50	.513
16	Cleveland Indians	.502	51	53	.490	.506	14	460	461	52-52	.499
17	Atlanta Braves	.502	56	48	.538	.490	9	398	379	55-49	.524
18	Tampa Bay Rays	.502	51	53	.490	.506	18	412	415	52-52	.496
19	Chicago White Sox	.494	51	54	.486	.497	19	451	467	51-54	.483
20	New York Mets	.493	49	55	.471	.500	20	403	400	52-52	.504
21	Boston Red Sox	.492	47	57	.452	.505	21	405	441	48-56	.458
22	Miami Marlins	.490	50	53	.485	.491	22	425	448	49-54	.474
23	Minnesota Twins	.489	46	57	.447	.503	23	424	467	47-56	.452
24	Houston Astros	.486	42	62	.404	.513	29	398	503	40-64	.385
25	Philadelphia Phillies	.481	45	59	.433	.497	24	403	464	45-59	.430
26	San Diego Padres	.481	46	57	.447	.492	25	320	354	46-57	.450
27	Texas Rangers	.479	41	63	.394	.508	30	416	529	40-64	.382
28	Arizona Diamondbacks	.478	45	59	.433	.493	26	421	490	44-60	.425
29	Colorado Rockies	.476	43	60	.417	.496	28	490	538	47-56	.453
30	Chicago Cubs	.475	42	60	.412	.496	27	397	446	45-57	.442

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.