2014 MLB Relative Power Index (RPI), as of the games of June 19,2014 from ESPN.GO.COM

MLB RPI Rankings
RK	TEAM	RPI	W	L	PCT	SOS	PWR	RS	RA	EXPW-L	EXPWP
1	Oakland Athletics	.534	45	28	.616	.507	2	377	243	52-21	.706
2	San Francisco Giants	.518	43	29	.597	.491	1	311	264	42-30	.581
3	Milwaukee Brewers	.516	44	30	.595	.490	3	323	295	40-34	.545
4	Toronto Blue Jays	.515	41	33	.554	.502	4	342	311	41-33	.547
5	Detroit Tigers	.514	37	32	.536	.507	6	307	309	34-35	.497
6	Los Angeles Angels	.513	38	33	.535	.506	5	335	301	39-32	.553
7	Kansas City Royals	.512	39	33	.542	.502	11	304	286	38-34	.530
8	New York Yankees	.511	38	33	.535	.503	10	291	310	33-38	.468
9	St. Louis Cardinals	.510	39	34	.534	.502	8	271	247	40-33	.546
10	Baltimore Orioles	.507	37	34	.521	.502	13	296	298	35-36	.497
11	Cleveland Indians	.506	37	36	.507	.506	17	324	341	35-38	.474
12	Atlanta Braves	.506	37	35	.514	.504	9	261	271	35-37	.481
13	Seattle Mariners	.503	37	36	.507	.502	16	290	257	41-32	.560
14	Los Angeles Dodgers	.502	40	34	.541	.490	12	318	280	42-32	.563
15	Washington Nationals	.502	37	34	.521	.496	7	289	253	40-31	.566
16	Pittsburgh Pirates	.502	35	37	.486	.507	14	294	312	34-38	.470
17	Texas Rangers	.501	35	37	.486	.505	19	311	351	32-40	.440
18	Minnesota Twins	.500	33	38	.465	.512	20	301	320	33-38	.469
19	Cincinnati Reds	.497	35	36	.493	.499	18	266	268	35-36	.496
20	Chicago White Sox	.495	35	38	.479	.500	22	321	347	34-39	.461
21	Boston Red Sox	.493	34	39	.466	.503	21	280	296	34-39	.472
22	Miami Marlins	.491	36	36	.500	.488	15	318	308	37-35	.516
23	Colorado Rockies	.490	34	38	.472	.496	23	358	356	36-36	.503
24	Houston Astros	.489	32	42	.432	.508	24	286	331	32-42	.427
25	New York Mets	.486	33	40	.452	.497	25	277	288	35-38	.481
26	Philadelphia Phillies	.485	33	38	.465	.491	26	284	309	33-38	.458
27	Chicago Cubs	.481	30	40	.429	.498	29	270	279	34-36	.484
28	San Diego Padres	.478	31	42	.425	.495	28	216	278	27-46	.376
29	Tampa Bay Rays	.474	29	45	.392	.502	30	270	318	31-43	.419
30	Arizona Diamondbacks	.473	31	45	.408	.495	27	309	373	31-45	.407

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.