MLB Relative Power Index (RPI) - 2013

Season:
MLB RPI Rankings
RK TEAM RPI W L PCT SOS PWR RS RA EXPW-L EXPWP
1 St. Louis Cardinals .549 29 16 .644 .518 2 213 156 29-16 .651
2 New York Yankees .541 28 17 .622 .514 4 192 166 26-19 .572
3 Arizona Diamondbacks .529 26 20 .565 .517 8 189 161 27-19 .579
4 Atlanta Braves .528 27 18 .600 .504 9 196 157 27-18 .609
5 Colorado Rockies .528 25 21 .543 .522 15 227 198 26-20 .568
6 Tampa Bay Rays .525 24 21 .533 .522 14 219 207 24-21 .528
7 San Francisco Giants .523 26 20 .565 .510 11 214 209 24-22 .512
8 Cleveland Indians .523 26 18 .591 .501 7 219 186 26-18 .581
9 Pittsburgh Pirates .521 27 18 .600 .494 12 181 161 25-20 .558
10 Boston Red Sox .520 27 19 .587 .498 5 222 188 27-19 .582
11 Cincinnati Reds .515 28 18 .609 .484 3 218 164 29-17 .639
12 Texas Rangers .511 29 17 .630 .472 1 214 168 28-18 .619
13 Baltimore Orioles .508 24 21 .533 .499 13 220 203 24-21 .540
14 Oakland Athletics .506 25 22 .532 .497 17 217 206 25-22 .526
15 Detroit Tigers .505 24 19 .558 .487 6 227 176 27-16 .625
16 Kansas City Royals .502 21 21 .500 .502 16 183 166 23-19 .549
17 Washington Nationals .498 23 23 .500 .498 10 157 184 19-27 .421
18 Milwaukee Brewers .498 18 26 .409 .528 25 183 212 19-25 .427
19 Toronto Blue Jays .497 18 27 .400 .529 24 187 231 18-27 .396
20 Minnesota Twins .492 18 24 .429 .513 21 185 201 19-23 .459
21 Philadelphia Phillies .491 22 24 .478 .496 19 164 198 19-27 .407
22 Chicago White Sox .483 21 23 .477 .485 20 164 175 21-23 .468
23 San Diego Padres .480 21 24 .467 .484 22 182 200 20-25 .453
24 Seattle Mariners .479 20 26 .435 .494 18 168 202 19-27 .409
25 Chicago Cubs .478 18 26 .409 .501 27 177 181 22-22 .489
26 Los Angeles Dodgers .470 18 26 .409 .491 23 147 186 17-27 .384
27 Los Angeles Angels .462 18 27 .400 .483 26 201 227 20-25 .439
28 New York Mets .456 17 26 .395 .476 28 177 210 18-25 .415
29 Houston Astros .448 13 33 .283 .503 29 182 273 14-32 .308
30 Miami Marlins .425 13 33 .283 .472 30 125 198 13-33 .285
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.