MLB Relative Power Index - 2009

Season: 2002 | 2003 | 2004 | 2005 | 2006 | 2007 | 2008 | 2009
MLB RPI RANKINGS
RNK TEAM RPI W L PCT SOS PWR RS RA EXPW-L EXPWP
1 Los Angeles Dodgers .537 50 29 .633 .505 1 381 297 49-30 .622
2 Boston Red Sox .537 48 30 .615 .511 2 411 337 47-31 .598
3 Los Angeles Angels .529 43 34 .558 .520 6 393 375 40-37 .523
4 New York Yankees .520 45 33 .577 .501 3 431 375 44-34 .569
5 Texas Rangers .516 42 35 .545 .507 10 379 358 41-36 .528
6 Detroit Tigers .516 43 35 .551 .504 5 369 350 41-37 .526
7 Tampa Bay Rays .514 44 36 .550 .502 4 442 354 49-31 .609
8 Seattle Mariners .513 40 38 .513 .513 15 306 322 37-41 .475
9 Colorado Rockies .510 41 37 .526 .505 13 392 361 42-36 .541
10 Minnesota Twins .509 41 39 .513 .508 14 378 348 43-37 .541
11 Milwaukee Brewers .507 42 37 .532 .499 8 373 368 40-39 .507
12 Toronto Blue Jays .506 42 38 .525 .500 12 396 356 44-36 .553
13 San Francisco Giants .504 42 36 .538 .492 9 314 292 42-36 .536
14 Chicago White Sox .502 41 38 .519 .497 20 353 350 40-39 .504
15 Chicago Cubs .500 38 38 .500 .500 17 320 314 39-37 .509
16 St. Louis Cardinals .499 43 38 .531 .488 7 353 342 42-39 .516
17 Florida Marlins .498 41 39 .513 .494 18 367 389 38-42 .471
18 Philadelphia Phillies .495 39 37 .513 .489 10 394 385 39-37 .512
19 New York Mets .495 39 39 .500 .493 16 352 362 38-40 .486
20 Houston Astros .495 38 39 .494 .495 22 317 335 36-41 .472
21 Oakland Athletics .494 33 44 .429 .516 26 325 358 35-42 .452
22 Baltimore Orioles .491 35 44 .443 .507 23 367 423 34-45 .429
23 Atlanta Braves .490 38 40 .487 .492 21 329 336 38-40 .489
24 Cincinnati Reds .488 39 38 .506 .482 19 323 336 37-40 .480
25 San Diego Padres .488 34 44 .436 .505 27 294 388 28-50 .365
26 Pittsburgh Pirates .479 36 43 .456 .487 24 346 343 40-39 .504
27 Cleveland Indians .478 31 49 .388 .508 28 405 446 36-44 .452
28 Kansas City Royals .474 33 45 .423 .490 25 307 370 32-46 .408
29 Arizona Diamondbacks .472 31 48 .392 .498 29 343 386 35-44 .441
30 Washington Nationals .438 22 54 .289 .487 30 322 426 28-48 .364
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.

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