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

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.