2014 MLB Relative Power Index (RPI), as of the games of May 23,2014

MLB RPI Rankings
RK	TEAM	RPI	W	L	PCT	SOS	PWR	RS	RA	EXPW-L	EXPWP
1	San Francisco Giants	.540	30	18	.625	.512	3	203	169	28-20	.591
2	Detroit Tigers	.535	28	16	.636	.501	1	214	167	27-17	.622
3	Atlanta Braves	.531	27	20	.574	.516	6	158	149	25-22	.529
4	Oakland Athletics	.524	30	18	.625	.490	2	245	150	35-13	.727
5	Cleveland Indians	.514	23	26	.469	.529	27	214	240	22-27	.443
6	Minnesota Twins	.514	23	22	.511	.515	19	204	217	21-24	.469
7	Los Angeles Angels	.513	27	20	.574	.492	10	233	184	29-18	.616
8	Milwaukee Brewers	.512	29	20	.592	.486	4	191	184	25-24	.519
9	Colorado Rockies	.510	26	22	.542	.500	7	257	210	29-19	.600
10	Miami Marlins	.509	25	24	.510	.508	14	232	207	27-22	.557
11	Los Angeles Dodgers	.508	26	23	.531	.500	9	210	207	25-24	.507
12	Seattle Mariners	.505	24	23	.511	.504	20	196	179	26-21	.545
13	Toronto Blue Jays	.504	27	22	.551	.488	13	238	220	26-23	.539
14	Washington Nationals	.501	24	24	.500	.501	12	189	186	24-24	.508
15	Baltimore Orioles	.500	24	22	.522	.493	8	199	198	23-23	.503
16	Kansas City Royals	.500	23	24	.489	.503	16	182	184	23-24	.495
17	San Diego Padres	.499	22	27	.449	.516	26	154	175	21-28	.436
18	St. Louis Cardinals	.495	26	22	.542	.479	5	183	166	26-22	.549
19	Texas Rangers	.493	23	25	.479	.498	21	192	226	20-28	.419
20	Chicago White Sox	.493	25	25	.500	.490	23	243	252	24-26	.482
21	New York Mets	.491	21	25	.457	.502	18	185	198	21-25	.466
22	New York Yankees	.489	24	23	.511	.482	11	200	213	22-25	.469
23	Boston Red Sox	.488	20	27	.426	.509	15	185	208	21-26	.442
24	Pittsburgh Pirates	.487	21	26	.447	.500	24	185	206	21-26	.446
25	Philadelphia Phillies	.486	20	25	.444	.499	25	178	210	19-26	.418
26	Cincinnati Reds	.485	22	24	.478	.488	17	165	170	22-24	.485
27	Tampa Bay Rays	.484	21	28	.429	.502	22	187	209	22-27	.445
28	Houston Astros	.474	17	32	.347	.517	30	172	236	17-32	.347
29	Arizona Diamondbacks	.466	18	31	.367	.499	28	187	255	17-32	.350
30	Chicago Cubs	.458	17	29	.370	.488	29	180	186	22-24	.484

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.