MLB Relative Power Index (RPI) - 2012

Season:
MLB RPI Rankings
RK TEAM RPI W L PCT SOS PWR RS RA EXPW-L EXPWP
1 Baltimore Orioles .543 23 14 .622 .517 3 173 158 20-17 .545
2 Tampa Bay Rays .538 23 14 .622 .511 7 169 153 20-17 .550
3 Texas Rangers .533 23 14 .622 .504 1 212 137 26-11 .705
4 Atlanta Braves .533 23 14 .622 .504 4 196 160 22-15 .600
5 New York Yankees .527 20 16 .556 .517 8 176 159 20-16 .551
6 Los Angeles Dodgers .526 24 12 .667 .479 2 155 123 22-14 .614
7 Washington Nationals .526 22 14 .611 .497 6 130 117 20-16 .552
8 New York Mets .525 20 16 .556 .515 10 149 172 15-21 .429
9 St. Louis Cardinals .514 21 15 .583 .491 5 198 134 25-11 .686
10 Cincinnati Reds .513 18 17 .514 .512 14 134 132 18-17 .508
11 Pittsburgh Pirates .506 17 19 .472 .517 24 102 127 14-22 .392
12 Toronto Blue Jays .503 19 18 .514 .500 9 167 152 20-17 .547
13 Chicago White Sox .500 17 20 .459 .514 16 150 151 18-19 .497
14 Boston Red Sox .498 17 19 .472 .507 23 199 187 19-17 .531
15 Miami Marlins .498 19 17 .528 .488 12 136 133 18-18 .511
16 Detroit Tigers .497 18 18 .500 .496 13 157 163 17-19 .481
17 Oakland Athletics .494 19 18 .514 .488 15 132 142 17-20 .464
18 Cleveland Indians .494 20 16 .556 .474 11 157 167 17-19 .469
19 Chicago Cubs .494 15 21 .417 .519 27 134 153 16-20 .434
20 Houston Astros .493 15 21 .417 .519 20 147 146 18-18 .503
21 Arizona Diamondbacks .491 16 21 .432 .511 18 148 160 17-20 .461
22 Seattle Mariners .490 16 22 .421 .513 25 136 154 17-21 .438
23 San Francisco Giants .487 18 18 .500 .482 17 133 138 17-19 .482
24 Milwaukee Brewers .484 16 20 .444 .498 22 150 173 15-21 .429
25 Philadelphia Phillies .484 18 19 .486 .483 19 142 142 19-19 .500
26 Kansas City Royals .474 15 20 .429 .489 28 143 162 15-20 .438
27 Colorado Rockies .468 14 21 .400 .490 26 171 188 16-19 .453
28 Los Angeles Angels .466 16 21 .432 .477 21 134 148 17-20 .450
29 San Diego Padres .458 13 24 .351 .493 29 120 147 15-22 .400
30 Minnesota Twins .434 10 26 .278 .486 30 120 192 10-26 .281
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.