MLB Relative Power Index (RPI) - 2014 as of the games of April 30,2014 from ESPN.GO.COM

MLB RPI Rankings
RK	TEAM	RPI	W	L	PCT	SOS	PWR	RS	RA	EXPW-L	EXPWP
1	Atlanta Braves	.589	17	9	.654	.567	2	92	76	15-11	.594
2	Milwaukee Brewers	.560	20	8	.714	.508	1	114	95	17-11	.590
3	Washington Nationals	.548	16	12	.571	.540	9	126	108	16-12	.576
4	New York Mets	.543	15	11	.577	.531	13	106	101	14-12	.524
5	Detroit Tigers	.532	14	9	.609	.506	6	104	95	13-10	.545
6	Miami Marlins	.530	13	14	.481	.546	25	126	105	16-11	.590
7	San Diego Padres	.523	13	16	.448	.547	26	77	103	10-19	.359
8	Oakland Athletics	.519	18	10	.643	.478	3	148	89	21-7	.734
9	Philadelphia Phillies	.513	13	13	.500	.518	23	107	122	11-15	.435
10	St. Louis Cardinals	.512	15	14	.517	.511	8	105	91	17-12	.571
11	Boston Red Sox	.507	13	14	.481	.516	14	112	124	12-15	.449
12	San Francisco Giants	.506	17	11	.607	.473	10	120	102	16-12	.581
13	Los Angeles Angels	.506	14	13	.519	.502	15	149	109	18-9	.651
14	Texas Rangers	.506	15	13	.536	.496	4	114	135	12-16	.416
15	Colorado Rockies	.503	16	13	.552	.486	11	157	133	17-12	.582
16	Los Angeles Dodgers	.502	15	12	.556	.484	7	108	103	14-13	.524
17	Minnesota Twins	.502	12	12	.500	.503	19	131	128	12-12	.512
18	Chicago White Sox	.497	14	15	.483	.502	18	154	150	15-14	.513
19	New York Yankees	.497	15	11	.577	.470	5	110	121	12-14	.452
20	Seattle Mariners	.496	11	14	.440	.515	27	97	102	12-13	.475
21	Baltimore Orioles	.492	12	12	.500	.489	12	108	114	11-13	.473
22	Kansas City Royals	.482	14	12	.538	.463	17	105	96	14-12	.545
23	Cleveland Indians	.479	11	17	.393	.508	22	106	132	11-17	.392
24	Tampa Bay Rays	.467	11	16	.407	.487	20	112	124	12-15	.449
25	Houston Astros	.463	9	19	.321	.511	30	88	142	8-20	.277
26	Toronto Blue Jays	.462	12	15	.444	.468	21	122	128	13-14	.476
27	Cincinnati Reds	.460	12	15	.444	.465	16	102	93	15-12	.546
28	Pittsburgh Pirates	.453	10	16	.385	.475	24	96	104	12-14	.460
29	Arizona Diamondbacks	.435	9	22	.290	.484	29	117	179	9-22	.299
30	Chicago Cubs	.421	9	17	.346	.445	28	99	108	12-14	.457

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.