2014 MLB Relative Power Index (RPI), as of the games of June 7,2014

MLB RPI Rankings
RK	TEAM	RPI	W	L	PCT	SOS	PWR	RS	RA	EXPW-L	EXPWP
1	San Francisco Giants	.537	41	21	.661	.496	1	270	207	39-23	.630
2	Oakland Athletics	.536	38	24	.613	.510	2	316	198	45-17	.718
3	Detroit Tigers	.524	33	25	.569	.509	3	262	251	30-28	.521
4	Toronto Blue Jays	.522	38	25	.603	.494	4	314	266	37-26	.582
5	Milwaukee Brewers	.514	37	26	.587	.490	6	276	253	34-29	.543
6	Atlanta Braves	.514	32	28	.533	.508	8	207	198	31-29	.522
7	Seattle Mariners	.514	32	29	.525	.510	18	254	230	34-27	.549
8	Los Angeles Angels	.511	33	28	.541	.501	5	292	261	34-27	.556
9	Cleveland Indians	.510	31	31	.500	.513	24	275	285	30-32	.482
10	Minnesota Twins	.506	29	31	.483	.514	22	261	276	28-32	.472
11	Baltimore Orioles	.504	31	29	.517	.499	14	263	263	30-30	.500
12	Texas Rangers	.503	31	31	.500	.504	15	263	293	28-34	.446
13	St. Louis Cardinals	.501	32	31	.508	.499	7	238	227	33-30	.524
14	Los Angeles Dodgers	.500	32	31	.508	.497	9	268	251	34-29	.533
15	Miami Marlins	.499	32	30	.516	.494	13	280	259	33-29	.539
16	Kansas City Royals	.499	30	32	.484	.504	19	242	258	29-33	.468
17	Washington Nationals	.498	31	29	.517	.492	12	250	218	34-26	.568
18	Pittsburgh Pirates	.498	29	32	.475	.505	20	246	265	28-33	.463
19	Houston Astros	.497	27	36	.429	.520	28	236	284	26-37	.408
20	New York Yankees	.496	31	30	.508	.492	10	248	278	27-34	.443
21	Chicago White Sox	.494	31	32	.492	.495	16	282	298	30-33	.472
22	San Diego Padres	.489	28	34	.452	.502	25	195	235	25-37	.408
23	Colorado Rockies	.489	29	32	.475	.494	11	305	296	31-30	.515
24	Boston Red Sox	.488	27	34	.443	.503	17	248	266	28-33	.465
25	Cincinnati Reds	.481	28	32	.467	.486	21	209	228	27-33	.457
26	New York Mets	.479	28	34	.452	.488	23	248	251	31-31	.494
27	Chicago Cubs	.478	25	34	.424	.497	29	231	239	28-31	.483
28	Arizona Diamondbacks	.475	27	37	.422	.493	30	265	317	26-38	.411
29	Philadelphia Phillies	.472	25	35	.417	.491	26	235	282	25-35	.410
30	Tampa Bay Rays	.472	24	39	.381	.503	27	236	282	26-37	.412

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.