2014 MLB Relative Power Index (RPI),as of the games of June 20,2014

MLB RPI Rankings
RK	TEAM	RPI	W	L	PCT	SOS	PWR	RS	RA	EXPW-L	EXPWP
1	Oakland Athletics	.536	46	28	.622	.508	2	381	246	52-22	.706
2	Milwaukee Brewers	.518	45	30	.600	.490	3	336	305	41-34	.548
3	Los Angeles Angels	.516	39	33	.542	.508	5	342	304	40-32	.559
4	Toronto Blue Jays	.515	42	33	.560	.501	4	356	320	41-34	.553
5	Detroit Tigers	.515	38	32	.543	.506	6	313	313	35-35	.500
6	San Francisco Giants	.514	43	30	.589	.489	1	312	268	42-31	.575
7	New York Yankees	.513	39	33	.542	.503	10	296	313	34-38	.472
8	Kansas City Royals	.510	39	34	.534	.502	11	309	293	38-35	.527
9	Atlanta Braves	.508	38	35	.521	.504	9	267	275	35-38	.485
10	Seattle Mariners	.507	38	36	.514	.505	16	297	262	42-32	.562
11	St. Louis Cardinals	.507	39	35	.527	.500	8	272	252	40-34	.538
12	Baltimore Orioles	.505	37	35	.514	.502	13	299	303	36-36	.493
13	Cleveland Indians	.504	37	37	.500	.506	17	328	347	35-39	.472
14	Minnesota Twins	.501	34	38	.472	.511	20	306	324	34-38	.471
15	Washington Nationals	.501	37	35	.514	.496	7	293	259	40-32	.561
16	Texas Rangers	.500	35	38	.479	.507	19	314	358	32-41	.435
17	Los Angeles Dodgers	.500	40	35	.533	.489	12	323	286	42-33	.561
18	Pittsburgh Pirates	.499	35	38	.479	.505	14	297	318	34-39	.466
19	Cincinnati Reds	.495	35	37	.486	.498	18	275	282	35-37	.487
20	Chicago White Sox	.493	35	39	.473	.500	22	325	352	34-40	.460
21	Miami Marlins	.493	37	36	.507	.488	15	321	310	38-35	.517
22	Boston Red Sox	.492	34	40	.459	.503	21	283	300	35-39	.471
23	Houston Astros	.491	33	42	.440	.508	24	289	332	32-43	.431
24	Colorado Rockies	.489	34	39	.466	.496	23	368	369	36-37	.499
25	Philadelphia Phillies	.487	34	38	.472	.492	26	289	310	33-39	.465
26	New York Mets	.484	33	41	.446	.497	25	279	291	35-39	.479
27	Chicago Cubs	.483	31	40	.437	.498	29	276	282	35-36	.489
28	San Diego Padres	.480	32	42	.432	.495	28	222	283	28-46	.381
29	Arizona Diamondbacks	.475	32	45	.416	.494	27	313	374	32-45	.412
30	Tampa Bay Rays	.473	29	46	.387	.501	30	271	321	31-44	.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.