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 | .551 | 27 | 15 | .643 | .521 | 1 | 197 | 148 | 27-15 | .639 | |
| 2 | New York Yankees | .543 | 27 | 16 | .628 | .515 | 7 | 184 | 159 | 25-18 | .573 | |
| 3 | Arizona Diamondbacks | .531 | 25 | 18 | .581 | .514 | 9 | 179 | 153 | 25-18 | .578 | |
| 4 | Boston Red Sox | .528 | 26 | 17 | .605 | .503 | 5 | 212 | 178 | 25-18 | .587 | |
| 5 | Tampa Bay Rays | .525 | 22 | 20 | .524 | .526 | 17 | 207 | 196 | 22-20 | .527 | |
| 6 | Atlanta Braves | .524 | 24 | 18 | .571 | .508 | 8 | 181 | 150 | 25-17 | .593 | |
| 7 | Colorado Rockies | .523 | 23 | 20 | .535 | .518 | 16 | 216 | 189 | 24-19 | .566 | |
| 8 | Cleveland Indians | .522 | 24 | 17 | .585 | .501 | 12 | 202 | 173 | 24-17 | .577 | |
| 9 | Pittsburgh Pirates | .521 | 25 | 18 | .581 | .501 | 14 | 175 | 157 | 24-19 | .554 | |
| 10 | San Francisco Giants | .521 | 24 | 19 | .558 | .508 | 3 | 202 | 202 | 22-22 | .500 | |
| 11 | Texas Rangers | .516 | 28 | 15 | .651 | .471 | 2 | 201 | 150 | 28-15 | .642 | |
| 12 | Cincinnati Reds | .516 | 26 | 17 | .605 | .486 | 10 | 208 | 158 | 27-16 | .634 | |
| 13 | Baltimore Orioles | .510 | 23 | 19 | .548 | .497 | 4 | 212 | 192 | 23-19 | .549 | |
| 14 | Kansas City Royals | .509 | 20 | 19 | .513 | .508 | 13 | 168 | 153 | 21-18 | .547 | |
| 15 | Detroit Tigers | .505 | 23 | 18 | .561 | .486 | 6 | 214 | 164 | 26-15 | .630 | |
| 16 | Milwaukee Brewers | .503 | 17 | 24 | .415 | .533 | 22 | 175 | 203 | 17-24 | .426 | |
| 17 | Washington Nationals | .501 | 23 | 20 | .535 | .490 | 11 | 151 | 159 | 20-23 | .474 | |
| 18 | Minnesota Twins | .501 | 18 | 21 | .462 | .514 | 18 | 179 | 186 | 19-20 | .481 | |
| 19 | Toronto Blue Jays | .499 | 17 | 26 | .395 | .534 | 28 | 177 | 222 | 17-26 | .389 | |
| 20 | Oakland Athletics | .495 | 22 | 22 | .500 | .493 | 15 | 203 | 201 | 22-22 | .505 | |
| 21 | Philadelphia Phillies | .489 | 20 | 23 | .465 | .498 | 20 | 153 | 188 | 17-26 | .398 | |
| 22 | Seattle Mariners | .484 | 20 | 23 | .465 | .490 | 19 | 160 | 174 | 20-23 | .458 | |
| 23 | Chicago White Sox | .482 | 19 | 22 | .463 | .488 | 24 | 153 | 164 | 19-22 | .465 | |
| 24 | Chicago Cubs | .481 | 18 | 24 | .429 | .498 | 27 | 170 | 172 | 21-21 | .494 | |
| 25 | San Diego Padres | .472 | 19 | 23 | .452 | .478 | 21 | 163 | 184 | 18-24 | .440 | |
| 26 | Los Angeles Dodgers | .470 | 17 | 24 | .415 | .489 | 26 | 140 | 175 | 16-25 | .390 | |
| 27 | Los Angeles Angels | .455 | 16 | 27 | .372 | .482 | 23 | 183 | 225 | 17-26 | .398 | |
| 28 | New York Mets | .451 | 16 | 24 | .400 | .467 | 25 | 170 | 199 | 17-23 | .422 | |
| 29 | Houston Astros | .445 | 12 | 31 | .279 | .500 | 30 | 173 | 260 | 13-30 | .307 | |
| 30 | Miami Marlins | .417 | 11 | 32 | .256 | .471 | 29 | 115 | 189 | 12-31 | .270 | |
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*
*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.