The San Antonio Spurs remain first in Efficiency Differential yet again with a mark of +14.2, ahead of the Golden State Warriors' +12.5.

The Toronto Raptors remain fifth with a +4.7 Efficiency Differential.

Week 15 Rankings
1. San Antonio: 14.2
2. Golden State: 12.5
3. Oklahoma City: 7.9
4. Cleveland: 6.0
5. Toronto: 4.7
6. Boston: 4.3
7. L.A. Clippers: 4.2
8. Indiana: 2.8
9. Atlanta: 2.6
10. Utah: 1.6
11. Detroit: 1.4
12. Charlotte: 0.4
13. Portland: 0.2
14. Chicago: 0.1
15. Miami: 0
16. Dallas: -0.9
17. Memphis: -1.3
18. Houston: -1.4
19. Orlando: -1.6
20. Sacramento: -1.8
21. New York: -2.3
22. Washington: -2.8
23. New Orleans: -3.1
24. Denver: -3.4
25. Minnesota: -3.8
26. Milwaukee: -5.4
27. Phoenix: -6.2
28. Brooklyn: -7.6
29. L.A. Lakers: -10.2
30. Philadelphia: -10.6