2014 MLB Relative Power Index (RPI) - as of the games of May 10,2014

MLB RPI Rankings
RK	TEAM	RPI	W	L	PCT	SOS	PWR	RS	RA	EXPW-L	EXPWP
1	San Francisco Giants	.535	23	14	.622	.506	3	152	129	22-15	.581
2	Detroit Tigers	.535	21	11	.656	.494	4	158	120	20-12	.634
3	Atlanta Braves	.528	20	15	.571	.513	6	110	104	18-17	.528
4	Colorado Rockies	.526	23	16	.590	.505	8	229	171	25-14	.642
5	Miami Marlins	.524	20	17	.541	.519	15	164	148	20-17	.551
6	Baltimore Orioles	.518	20	14	.588	.495	10	146	145	17-17	.503
7	Los Angeles Dodgers	.518	20	18	.526	.515	5	155	146	20-18	.530
8	Boston Red Sox	.517	18	18	.500	.523	14	149	156	17-19	.477
9	Milwaukee Brewers	.517	23	14	.622	.482	1	147	135	20-17	.542
10	Oakland Athletics	.515	22	15	.595	.488	2	178	125	25-12	.670
11	Washington Nationals	.514	19	17	.528	.509	7	146	141	19-17	.517
12	San Diego Padres	.512	17	21	.447	.533	27	111	135	15-23	.403
13	Texas Rangers	.511	19	18	.514	.511	11	157	182	16-21	.427
14	Seattle Mariners	.511	19	17	.528	.505	24	145	142	18-18	.510
15	New York Yankees	.505	19	16	.543	.492	9	150	160	16-19	.468
16	Los Angeles Angels	.504	18	17	.514	.501	12	177	151	20-15	.579
17	Philadelphia Phillies	.498	17	18	.486	.501	20	137	166	14-21	.405
18	New York Mets	.496	16	19	.457	.508	16	137	146	16-19	.468
19	Chicago White Sox	.494	19	19	.500	.493	22	196	191	19-19	.513
20	Minnesota Twins	.494	16	19	.457	.507	21	164	174	16-19	.470
21	Cleveland Indians	.491	17	20	.459	.502	25	147	161	17-20	.455
22	Toronto Blue Jays	.488	18	19	.486	.488	23	184	167	20-17	.548
23	Kansas City Royals	.484	17	19	.472	.488	19	139	141	18-18	.493
24	Tampa Bay Rays	.482	16	21	.432	.499	18	155	164	17-20	.472
25	St. Louis Cardinals	.478	18	19	.486	.475	13	134	120	21-16	.555
26	Cincinnati Reds	.475	16	19	.457	.481	17	132	125	18-17	.527
27	Pittsburgh Pirates	.473	16	20	.444	.482	26	144	155	17-19	.463
28	Arizona Diamondbacks	.467	14	25	.359	.502	29	146	213	12-27	.320
29	Houston Astros	.463	11	26	.297	.518	30	127	190	11-26	.309
30	Chicago Cubs	.437	12	23	.343	.469	28	131	144	16-19	.453

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.