Relative Percent Index - 2009-2010
| 2009-10 NBA RPI Rankings | ||||||||||||
| RNK | TEAM | RPI | W | L | PCT | SOS | PWR | PF | PA | Exp. W-L | Exp. WP | |
| 1 | LA Lakers | .606 | 11 | 3 | .786 | .546 | 1 | 1425 | 1351 | 10-4 | .707 | |
| 2 | Atlanta | .605 | 11 | 3 | .786 | .544 | 2 | 1477 | 1384 | 10-4 | .745 | |
| 3 | Phoenix | .568 | 12 | 3 | .800 | .491 | 3 | 1671 | 1588 | 10-5 | .699 | |
| 4 | Houston | .552 | 8 | 7 | .533 | .558 | 11 | 1551 | 1539 | 8-7 | .532 | |
| 5 | Dallas | .552 | 11 | 4 | .733 | .491 | 6 | 1549 | 1447 | 11-4 | .755 | |
| 6 | Miami | .544 | 9 | 5 | .643 | .512 | 13 | 1357 | 1335 | 8-6 | .567 | |
| 7 | New Orleans | .543 | 7 | 9 | .438 | .578 | 18 | 1594 | 1646 | 6-10 | .371 | |
| 8 | Denver | .539 | 11 | 4 | .733 | .475 | 5 | 1628 | 1515 | 11-4 | .766 | |
| 9 | Orlando | .538 | 11 | 4 | .733 | .473 | 4 | 1490 | 1410 | 11-4 | .713 | |
| 10 | Oklahoma City | .535 | 8 | 7 | .533 | .536 | 14 | 1446 | 1412 | 9-6 | .597 | |
| 11 | Boston | .534 | 11 | 4 | .733 | .468 | 8 | 1490 | 1364 | 12-3 | .811 | |
| 12 | Chicago | .534 | 6 | 7 | .462 | .558 | 16 | 1188 | 1260 | 4-9 | .275 | |
| 13 | Cleveland | .523 | 11 | 4 | .733 | .453 | 7 | 1486 | 1419 | 10-5 | .682 | |
| 14 | San Antonio | .522 | 7 | 6 | .538 | .517 | 15 | 1328 | 1274 | 9-4 | .665 | |
| 15 | Portland | .519 | 12 | 5 | .706 | .457 | 9 | 1646 | 1505 | 14-3 | .814 | |
| 16 | Toronto | .511 | 7 | 9 | .438 | .535 | 17 | 1692 | 1738 | 6-10 | .391 | |
| 17 | Utah | .511 | 7 | 7 | .500 | .514 | 12 | 1393 | 1394 | 7-7 | .497 | |
| 18 | Detroit | .490 | 5 | 10 | .333 | .542 | 22 | 1383 | 1423 | 6-9 | .385 | |
| 19 | Sacramento | .481 | 6 | 8 | .429 | .498 | 19 | 1452 | 1476 | 6-8 | .433 | |
| 20 | Washington | .473 | 4 | 9 | .308 | .528 | 24 | 1256 | 1321 | 4-9 | .303 | |
| 21 | Milwaukee | .469 | 8 | 5 | .615 | .420 | 10 | 1296 | 1253 | 8-5 | .636 | |
| 22 | Charlotte | .462 | 5 | 9 | .357 | .498 | 25 | 1225 | 1244 | 6-8 | .437 | |
| 23 | Golden State | .461 | 5 | 9 | .357 | .495 | 21 | 1530 | 1561 | 6-8 | .418 | |
| 24 | Indiana | .459 | 6 | 7 | .462 | .459 | 20 | 1284 | 1298 | 6-7 | .455 | |
| 25 | LA Clippers | .451 | 6 | 10 | .375 | .477 | 23 | 1521 | 1582 | 5-11 | .343 | |
| 26 | Memphis | .441 | 5 | 10 | .333 | .477 | 26 | 1529 | 1609 | 5-10 | .301 | |
| 27 | Philadelphia | .423 | 5 | 10 | .333 | .453 | 27 | 1464 | 1528 | 5-10 | .330 | |
| 28 | New York | .415 | 3 | 12 | .200 | .486 | 28 | 1505 | 1614 | 4-11 | .240 | |
| 29 | Minnesota | .391 | 1 | 14 | .067 | .500 | 29 | 1352 | 1562 | 1-14 | .085 | |
| 30 | New Jersey | .348 | 0 | 15 | .000 | .464 | 30 | 1274 | 1430 | 2-13 | .129 | |
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Glossary W: Wins, L: Losses, PCT: Winning percentage, RPI: Relative Power Index+, SOS: Strength of schedule , PWR: ESPN Power Ranking , PF: Points scored, PA: Points 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 the Pythagorean 16.5 Method, the basketball adaptation of Bill James' Pythagorean theorem of baseball: Runs scored ^16.5 / (Runs scored ^16.5 + runs allowed ^16.5). This formula was designed to relate a team's points scored and points allowed to its won-lost record. |