Relative Percent Index - 2008-2009

Season: 2002-2003 | 2003-2004 | 2004-2005 | 2005-2006 | 2006-2007 | 2007-2008 | 2008-2009
2008-09 NBA RPI Rankings
RNK TEAM RPI W L PCT SOS PWR PF PA Exp. W-L Exp. WP
1 Cleveland .576 66 16 .805 .499 2 8223 7491 68-14 .823
2 LA Lakers .570 65 17 .793 .496 1 8768 8140 63-19 .773
3 Boston .567 62 20 .756 .504 3 8275 7659 64-18 .782
4 Orlando .554 59 23 .720 .498 4 8286 7737 62-20 .756
5 Portland .539 54 28 .659 .499 5 8153 7715 58-24 .713
6 Denver .539 54 28 .659 .499 6 8555 8275 52-30 .634
7 Houston .537 53 29 .646 .500 7 8070 7742 55-27 .665
8 San Antonio .536 54 28 .659 .496 8 7958 7650 54-28 .657
9 Dallas .525 50 32 .610 .497 10 8343 8181 48-34 .580
10 New Orleans .525 49 33 .598 .500 9 7857 7730 46-36 .567
11 Atlanta .520 47 35 .573 .502 12 8046 7917 46-36 .566
12 Utah .518 48 34 .585 .496 13 8492 8275 50-32 .605
13 Phoenix .513 46 36 .561 .497 16 8974 8816 47-35 .573
14 Miami .509 43 39 .524 .504 14 8061 8040 42-40 .511
15 Chicago .500 41 41 .500 .500 11 8378 8401 40-42 .489
16 Philadelphia .500 41 41 .500 .500 17 7987 7981 41-41 .503
17 Detroit .494 39 43 .476 .500 15 7727 7767 39-43 .479
18 Indiana .489 36 46 .439 .506 18 8617 8708 37-45 .457
19 Milwaukee .480 34 48 .415 .502 24 8142 8231 37-45 .455
20 Charlotte .480 35 47 .427 .498 19 7677 7781 36-46 .445
21 New Jersey .478 34 48 .415 .499 21 8044 8244 33-49 .400
22 Toronto .477 33 49 .402 .502 20 8121 8352 32-50 .386
23 New York .474 32 50 .390 .502 25 8627 8841 33-49 .400
24 Golden State .462 29 53 .354 .498 22 8905 9212 30-52 .364
25 Memphis .451 24 58 .293 .504 23 7698 8146 23-59 .282
26 Minnesota .450 24 58 .293 .502 26 8019 8422 25-57 .308
27 Oklahoma City .444 23 59 .280 .498 28 7952 8452 22-60 .268
28 Washington .435 19 63 .232 .503 27 7877 8489 18-64 .225
29 LA Clippers .435 19 63 .232 .502 29 7799 8518 16-66 .189
30 Sacramento .427 17 65 .207 .500 30 8248 8966 17-65 .201

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.

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