2014 MLB Relative Power Index (RPI),as of the games of August 14,2014

MLB RPI Rankings
RK	TEAM	RPI	W	L	PCT	SOS	PWR	RS	RA	EXPW-L	EXPWP
1	Oakland Athletics	.529	73	47	.608	.503	1	586	414	80-40	.667
2	Baltimore Orioles	.528	69	50	.580	.510	5	518	460	67-52	.559
3	Los Angeles Angels	.526	70	49	.588	.506	2	562	476	69-50	.582
4	Kansas City Royals	.518	65	54	.546	.508	10	481	460	62-57	.522
5	Seattle Mariners	.514	65	55	.542	.505	13	473	384	72-48	.603
6	Detroit Tigers	.514	64	54	.542	.504	4	544	503	64-54	.539
7	Toronto Blue Jays	.511	63	59	.516	.509	14	542	528	63-59	.513
8	St. Louis Cardinals	.510	63	56	.529	.504	11	441	449	58-61	.491
9	Los Angeles Dodgers	.510	69	53	.566	.491	3	500	443	68-54	.560
10	New York Yankees	.507	61	58	.513	.506	12	474	509	55-64	.464
11	Washington Nationals	.507	65	53	.551	.492	6	495	409	70-48	.594
12	Milwaukee Brewers	.506	66	55	.545	.493	7	517	486	64-57	.531
13	Pittsburgh Pirates	.506	64	56	.533	.497	8	509	497	61-59	.512
14	Tampa Bay Rays	.504	59	61	.492	.509	17	477	459	62-58	.519
15	Cleveland Indians	.504	60	60	.500	.505	18	525	516	61-59	.509
16	San Francisco Giants	.501	63	57	.525	.492	9	465	437	64-56	.531
17	Cincinnati Reds	.500	60	60	.500	.500	16	456	428	64-56	.532
18	Atlanta Braves	.496	61	59	.508	.492	15	444	446	60-60	.498
19	Boston Red Sox	.494	54	65	.454	.507	24	452	507	53-66	.443
20	Miami Marlins	.493	59	61	.492	.493	19	480	514	56-64	.466
21	Chicago White Sox	.492	57	64	.471	.499	21	511	571	54-67	.445
22	Minnesota Twins	.491	54	65	.454	.504	23	500	537	55-64	.464
23	New York Mets	.490	57	64	.471	.497	20	462	467	60-61	.495
24	San Diego Padres	.488	57	62	.479	.491	22	387	397	58-61	.487
25	Houston Astros	.487	50	71	.413	.511	28	477	569	50-71	.413
26	Chicago Cubs	.479	52	67	.437	.493	25	459	503	54-65	.454
27	Philadelphia Phillies	.478	53	68	.438	.492	26	466	542	51-70	.425
28	Arizona Diamondbacks	.477	52	68	.433	.491	27	479	562	50-70	.421
29	Texas Rangers	.476	47	73	.392	.504	29	480	611	46-74	.382
30	Colorado Rockies	.464	46	74	.383	.491	30	552	630	52-68	.434

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.