2016 MLB Relative Power Index (RPI),as of the games of April 19,2016

MLB RPI Rankings
RK	TEAM	RPI	W	L	PCT	SOS	PWR	RS	RA	EXPW-L	EXPWP
1	Chicago Cubs	.615	11	3	.786	.558	0	78	32	12-2	.856
2	Colorado Rockies	.548	8	6	.571	.541	0	76	82	6-8	.462
3	Baltimore Orioles	.541	8	4	.667	.499	0	63	49	7-5	.623
4	Washington Nationals	.540	10	3	.769	.464	0	59	30	10-3	.795
5	Cincinnati Reds	.534	7	7	.500	.546	0	57	74	5-9	.372
6	Chicago White Sox	.534	9	5	.643	.497	0	44	39	8-6	.560
7	Boston Red Sox	.534	6	7	.462	.558	0	59	60	6-7	.492
8	Arizona Diamondbacks	.531	7	8	.467	.553	0	65	74	7-8	.436
9	Cleveland Indians	.526	6	5	.545	.519	0	45	45	6-6	.500
10	Tampa Bay Rays	.525	6	7	.462	.547	0	37	42	6-7	.437
11	Kansas City Royals	.524	9	4	.692	.469	0	51	41	8-5	.607
12	San Francisco Giants	.523	7	8	.467	.542	0	77	73	8-7	.527
13	Oakland Athletics	.517	7	7	.500	.522	0	40	45	6-8	.441
14	Detroit Tigers	.499	7	5	.583	.470	0	64	51	7-5	.612
15	Los Angeles Angels	.498	6	8	.429	.521	0	43	55	5-9	.379
16	New York Mets	.493	7	6	.538	.477	0	53	40	8-5	.637
17	St. Louis Cardinals	.492	7	7	.500	.490	0	86	57	10-4	.695
18	Pittsburgh Pirates	.491	7	7	.500	.488	0	61	61	7-7	.500
19	Texas Rangers	.486	8	6	.571	.458	0	68	62	8-6	.546
20	Los Angeles Dodgers	.484	8	6	.571	.455	0	66	49	9-5	.645
21	Toronto Blue Jays	.478	8	7	.533	.460	0	60	55	8-7	.543
22	Miami Marlins	.476	4	8	.333	.524	0	49	55	5-7	.442
23	Philadelphia Phillies	.471	6	9	.400	.494	0	37	68	3-12	.228
24	Seattle Mariners	.468	5	8	.385	.496	0	47	48	6-7	.489
25	Minnesota Twins	.460	4	10	.286	.518	0	40	56	5-9	.338
26	Houston Astros	.458	5	9	.357	.492	0	56	71	5-9	.384
27	Atlanta Braves	.444	4	9	.308	.489	0	50	68	5-8	.351
28	New York Yankees	.440	5	7	.417	.447	0	51	53	6-6	.481
29	Milwaukee Brewers	.437	6	8	.429	.440	0	49	80	4-10	.273
30	San Diego Padres	.436	5	9	.357	.462	0	52	68	5-9	.369

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.