Updated MLB Relative Power Index (RPI) - 2014 as of the games of April 25,2014

MLB RPI Rankings
RK	TEAM	RPI	W	L	PCT	SOS	PWR	RS	RA	EXPW-L	EXPWP
1	Atlanta Braves	.607	15	7	.682	.582	3	84	57	15-7	.685
2	Milwaukee Brewers	.575	17	6	.739	.520	1	96	72	15-8	.640
3	Washington Nationals	.549	13	11	.542	.552	10	109	101	13-11	.538
4	New York Mets	.548	13	10	.565	.543	21	90	93	11-12	.484
5	Detroit Tigers	.529	12	8	.600	.505	6	92	86	11-9	.534
6	Oakland Athletics	.524	15	8	.652	.482	5	116	73	16-7	.716
7	San Diego Padres	.518	11	13	.458	.538	20	65	84	9-15	.375
8	Philadelphia Phillies	.516	11	12	.478	.529	24	98	111	10-13	.438
9	Texas Rangers	.516	14	9	.609	.485	8	99	101	11-12	.490
10	Chicago White Sox	.515	12	12	.500	.521	25	134	132	12-12	.508
11	St. Louis Cardinals	.513	13	11	.542	.504	2	81	72	13-11	.559
12	Boston Red Sox	.513	11	13	.458	.531	17	97	107	11-13	.451
13	Minnesota Twins	.509	11	11	.500	.512	27	122	119	11-11	.512
14	Cleveland Indians	.506	11	12	.478	.516	22	94	104	10-13	.450
15	Miami Marlins	.499	10	13	.435	.521	26	101	92	13-10	.547
16	Colorado Rockies	.498	13	11	.542	.483	16	131	112	14-10	.578
17	Baltimore Orioles	.493	11	11	.500	.491	14	102	103	11-11	.495
18	Los Angeles Angels	.492	11	11	.500	.490	18	125	94	14-8	.639
19	San Francisco Giants	.491	13	10	.565	.467	7	98	90	12-11	.542
20	Los Angeles Dodgers	.490	13	11	.542	.472	4	95	90	13-11	.527
21	New York Yankees	.489	13	10	.565	.463	9	100	110	10-13	.452
22	Seattle Mariners	.487	9	13	.409	.513	23	82	88	10-12	.465
23	Tampa Bay Rays	.484	10	13	.435	.501	12	99	101	11-12	.490
24	Kansas City Royals	.479	11	11	.500	.472	11	80	81	11-11	.494
25	Toronto Blue Jays	.474	11	12	.478	.473	15	100	106	11-12	.471
26	Cincinnati Reds	.469	11	12	.478	.466	19	94	77	14-9	.598
27	Pittsburgh Pirates	.450	9	15	.375	.475	13	90	96	11-13	.468
28	Houston Astros	.441	7	17	.292	.491	30	73	124	6-18	.257
29	Arizona Diamondbacks	.418	8	18	.308	.454	28	98	154	7-19	.288
30	Chicago Cubs	.400	7	15	.318	.427	29	81	96	9-13	.416

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.