2016 MLB Relative Power Index (RPI),as of the games of April 29,2016

MLB RPI Rankings
RK	TEAM	RPI	W	L	PCT	SOS	PWR	RS	RA	EXPW-L	EXPWP
1	Chicago Cubs	.571	17	5	.773	.503	0	136	57	19-3	.851
2	Philadelphia Phillies	.553	13	10	.565	.549	0	76	94	9-14	.395
3	Chicago White Sox	.552	16	8	.667	.514	0	87	69	15-9	.614
4	New York Mets	.550	14	7	.667	.511	0	101	61	15-6	.733
5	Baltimore Orioles	.542	14	8	.636	.511	0	101	78	14-8	.626
6	Cincinnati Reds	.533	9	14	.391	.580	0	86	135	7-16	.289
7	Texas Rangers	.528	13	10	.565	.515	0	99	88	13-10	.559
8	Los Angeles Angels	.525	11	12	.478	.541	0	78	86	10-13	.451
9	Washington Nationals	.525	15	7	.682	.472	0	87	59	15-7	.685
10	Miami Marlins	.517	11	11	.500	.523	0	85	89	10-12	.477
11	Cleveland Indians	.517	10	10	.500	.522	0	88	81	11-9	.541
12	Oakland Athletics	.508	12	12	.500	.510	0	88	98	11-13	.446
13	Pittsburgh Pirates	.506	14	9	.609	.472	0	123	108	13-10	.565
14	Arizona Diamondbacks	.506	12	13	.480	.515	0	118	133	11-14	.440
15	Tampa Bay Rays	.504	10	12	.455	.521	0	72	77	10-12	.466
16	Kansas City Royals	.504	12	10	.545	.491	0	77	75	11-11	.513
17	Seattle Mariners	.504	12	10	.545	.490	0	94	76	13-9	.605
18	Detroit Tigers	.502	12	10	.545	.488	0	105	92	12-10	.566
19	Toronto Blue Jays	.501	11	13	.458	.516	0	97	98	12-12	.495
20	Colorado Rockies	.493	10	12	.455	.505	0	121	133	10-12	.453
21	St. Louis Cardinals	.491	12	11	.522	.481	0	141	97	16-7	.679
22	Boston Red Sox	.480	13	10	.565	.452	0	118	105	13-10	.558
23	San Francisco Giants	.476	12	12	.500	.467	0	119	115	12-12	.517
24	Minnesota Twins	.462	7	16	.304	.514	0	79	106	8-15	.357
25	San Diego Padres	.457	8	15	.348	.494	0	90	121	8-15	.356
26	Los Angeles Dodgers	.457	12	12	.500	.443	0	103	92	13-11	.556
27	New York Yankees	.453	8	13	.381	.477	0	74	96	8-13	.373
28	Milwaukee Brewers	.449	8	14	.364	.477	0	84	130	6-16	.295
29	Atlanta Braves	.442	5	18	.217	.517	0	75	122	6-17	.274
30	Houston Astros	.432	7	16	.304	.474	0	90	121	8-15	.356

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.