The Detroit Pistons have jumped into the top-10 in Efficiency Differential, going from 13th/+0.5 last week to 10th/+1.4. The Pistons have won four in a row following two losses after Tobias Harris joined the team.

Near the bottom of the rankings, the Phoenix Suns are now 28th as they've switched spots with the Brooklyn Nets.

Week 18 Rankings

1. San Antonio: 13.3
2. Golden State: 11.2
3. Oklahoma City: 7.4
4. Cleveland: 6.1
5. Toronto: 4.8
6. L.A. Clippers: 4.8
7. Boston: 4.2
8. Atlanta: 2.6
9. Indiana: 1.9
10. Detroit: 1.4
11. Portland: 1.3
12. Utah: 1.0
13. Charlotte: 0.9
14. Miami: 0.3
15. Dallas: -0.1
16. Memphis: -0.6
17. Chicago: -0.8
18. Orlando: -1.4
19. Houston: -1.4
20. Washington: -1.6
21. Sacramento: -2.2
22. New York: -2.7
23. New Orleans: -2.9
24. Denver: -3.3
25. Minnesota: -4.2
26. Milwaukee: -4.6
27. Brooklyn: -6.9
28. Phoenix: -7.0
29. L.A. Lakers: -10.1
30. Philadelphia: -10.8

The San Antonio Spurs remain first in Efficiency Differential but have dropped a full point per 100 possessions since the previous rankings two weeks ago.

The Golden State Warriors have also dropped a full point following their blowout loss to the Portland Trail Blazers.

The Cleveland Cavaliers, meanwhile, have jumped from +6.0 points per 100 possessions to +6.8. 

Week 17 Rankings

1. San Antonio: 13.2
2. Golden State: 11.4
3. Oklahoma City: 7.7
4. Cleveland: 6.8
5. Toronto: 4.6
6. L.A. Clippers: 4.2
7. Boston: 4.1
8. Atlanta: 2.5
9. Indiana: 2.3
10. Utah: 1.4
11. Charlotte: 1.3
12. Portland: 1.2
13. Detroit: 0.5
14. Miami: 0.2
15. Chicago: -0.5
16. Dallas: -0.5
17. Memphis: -1.1
18. Orlando: -1.3
19. Houston: -1.5
20. Sacramento: -1.9
21. New York: -2.3
22. Washington: -2.5
23. New Orleans: -2.7
24. Denver: -3.4
25. Minnesota: -3.9
26. Milwaukee: -4.7
27. Phoenix: -6.6
28. Brooklyn: -7.4
29. L.A. Lakers: -10.0
30. Philadelphia: -10.6

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

The San Antonio Spurs lost twice last week but remain in first in Efficiency Differential with a mark of +14.1. Their differential dropped down from +15.4 before their blowout loss to the Golden State Warriors.

The Warriors jumped up from 12.1 to 12.6 since last week.

With a full week of Tyronn Lue, the Cleveland Cavaliers improved from 5.6 to 6.3.

Week 14 Rankings

1. San Antonio: 14.1
2. Golden State: 12.6
3. Oklahoma City: 8.2
4. Cleveland: 6.3
5. Toronto: 5.2
6. Boston: 4.2
7. L.A. Clippers: 4.2
8. Indiana: 2.8
9. Atlanta: 1.6
10. Detroit: 1.6
11. Utah: 1.1
12. Chicago: 0.4
13. Miami: 0.4
14. Charlotte: 0.2
15. Dallas: -0.1
16. Portland: -0.2
17. Orlando: -1.1
18. Houston: -1.5
19. Sacramento: -1.6
20. Memphis: -1.7
21. New York: -1.9
22. New Orleans: -2.3
23. Washington: -2.6
24. Minnesota: -4.2
25. Denver: -4.2
26. Milwaukee: -5.2
27. Phoenix: -6.1
28. Brooklyn: -7.9
29. Philadelphia: -10.3
30. L.A. Lakers: -10.8