2016 MLB Relative Power Index (RPI),as of the games of August 27,2016 from ESPN.GO.COM

MLB RPI Rankings

RK	TEAM	RPI	W	L	PCT	SOS	PWR	RS	RA	EXPW-L	EXPWP
1	Chicago Cubs	.531	82	45	.646	.493	0	653	434	88-39	.694
2	Texas Rangers	.524	75	54	.581	.504	0	598	601	64-65	.497
3	Toronto Blue Jays	.521	72	56	.563	.507	0	623	525	75-53	.585
4	Cleveland Indians	.519	73	54	.575	.501	0	631	535	74-53	.582
5	Washington Nationals	.518	75	53	.586	.495	0	624	482	80-48	.626
6	Baltimore Orioles	.518	70	58	.547	.508	0	605	591	65-63	.512
7	Boston Red Sox	.516	71	57	.555	.504	0	692	576	76-52	.591
8	Detroit Tigers	.513	69	59	.539	.505	0	600	576	67-61	.520
9	Kansas City Royals	.511	67	61	.523	.507	0	507	526	62-66	.482
10	Seattle Mariners	.511	68	60	.531	.504	0	596	551	69-59	.539
11	St. Louis Cardinals	.508	68	59	.535	.499	0	635	552	72-55	.570
12	New York Yankees	.508	66	61	.520	.504	0	539	551	62-65	.489
13	Houston Astros	.507	67	61	.523	.501	0	583	539	69-59	.539
14	Los Angeles Dodgers	.505	71	57	.555	.489	0	581	514	72-56	.561
15	San Francisco Giants	.505	70	58	.547	.490	0	572	517	70-58	.550
16	Pittsburgh Pirates	.503	65	61	.516	.498	0	569	561	64-62	.507
17	Chicago White Sox	.501	61	66	.480	.507	0	513	553	59-68	.463
18	New York Mets	.500	65	63	.508	.497	0	496	501	63-65	.495
19	Miami Marlins	.499	67	61	.523	.491	0	540	526	66-62	.513
20	Colorado Rockies	.488	60	68	.469	.495	0	672	667	64-64	.504
21	Los Angeles Angels	.487	54	74	.422	.509	0	568	609	60-68	.465
22	Oakland Athletics	.487	55	73	.430	.506	0	510	602	53-75	.418
23	Tampa Bay Rays	.487	54	73	.425	.507	0	529	547	61-66	.483
24	Philadelphia Phillies	.485	59	69	.461	.494	0	483	614	49-79	.382
25	Cincinnati Reds	.484	54	73	.425	.503	0	568	683	52-75	.409
26	Milwaukee Brewers	.478	56	72	.438	.492	0	526	605	55-73	.430
27	San Diego Padres	.477	53	75	.414	.498	0	557	625	57-71	.443
28	Arizona Diamondbacks	.475	54	75	.419	.494	0	589	720	52-77	.401
29	Minnesota Twins	.473	49	79	.383	.503	0	582	701	52-76	.408
30	Atlanta Braves	.464	47	82	.364	.497	0	478	635	47-82	.362

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.