2014 MLB Relative Power Index (RPI),as of the games of June 28,2014

MLB RPI Rankings
RK	TEAM	RPI	W	L	PCT	SOS	PWR	RS	RA	EXPW-L	EXPWP
1	Oakland Athletics	.536	50	30	.625	.506	0	414	280	55-25	.686
2	Milwaukee Brewers	.524	51	32	.614	.494	0	379	333	47-36	.564
3	Los Angeles Angels	.521	45	34	.570	.505	0	382	330	45-34	.573
4	Detroit Tigers	.518	44	33	.571	.500	0	357	336	41-36	.530
5	St. Louis Cardinals	.512	44	38	.537	.504	0	307	283	44-38	.541
6	Toronto Blue Jays	.510	45	38	.542	.499	0	392	358	45-38	.545
7	New York Yankees	.510	41	38	.519	.507	0	318	347	36-43	.456
8	Seattle Mariners	.510	43	38	.531	.503	0	328	281	47-34	.577
9	Cincinnati Reds	.509	42	38	.525	.504	0	319	301	42-38	.529
10	Atlanta Braves	.508	43	38	.531	.500	0	295	296	40-41	.498
11	Pittsburgh Pirates	.507	41	40	.506	.507	0	330	342	39-42	.482
12	San Francisco Giants	.506	46	35	.568	.486	0	334	302	45-36	.550
13	Washington Nationals	.506	43	38	.531	.498	0	324	285	46-35	.564
14	Kansas City Royals	.505	41	39	.513	.503	0	330	319	41-39	.517
15	Baltimore Orioles	.505	42	38	.525	.498	13	336	327	41-39	.514
16	Los Angeles Dodgers	.504	46	37	.554	.487	0	350	302	48-35	.573
17	Cleveland Indians	.499	39	41	.488	.502	0	357	375	38-42	.475
18	Texas Rangers	.497	37	43	.463	.509	0	336	392	34-46	.424
19	Minnesota Twins	.495	36	43	.456	.508	0	332	362	36-43	.457
20	Boston Red Sox	.494	37	44	.457	.506	0	303	339	36-45	.444
21	Houston Astros	.489	35	47	.427	.510	0	306	360	34-48	.419
22	New York Mets	.489	37	44	.457	.499	0	318	316	41-40	.503
23	Chicago White Sox	.488	38	44	.463	.497	0	354	389	37-45	.453
24	Miami Marlins	.487	39	42	.481	.488	0	351	355	40-41	.494
25	Chicago Cubs	.482	34	46	.425	.501	0	303	317	38-42	.477
26	Philadelphia Phillies	.482	36	45	.444	.495	0	313	352	36-45	.442
27	Colorado Rockies	.481	35	46	.432	.498	0	403	423	39-42	.476
28	Tampa Bay Rays	.477	34	49	.410	.500	0	306	348	36-47	.436
29	Arizona Diamondbacks	.477	35	48	.422	.495	0	333	400	34-49	.409
30	San Diego Padres	.476	34	47	.420	.494	0	240	300	32-49	.390

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.