Here's the updated BPI ranking after the 4th week of the season. I missed last week because of a work trip, so this is an update from week 2, 14 days ago. I’ve added a number at the end to show how the ranking changed -- 0 means it didn't change, positive numbers means it rose, negative numbers means it fell.
The Oklahoma Thunder are our biggest gainer by far, jumping a remarkable 10 spots from two weeks ago. The Cavs are second best gainer, jumping 4 spots, but trailing Oklahoma’s 10 spot jump by quite a bit.
The Hawks are the biggest loser, dropping 4 spots. The Warriors, Nets, and Bulls dropped 3 spots each.
Comparing the ranking here to the ranking based purely on wins and losses, the biggest differences are the Clippers, who are merely 5-7, but rank 5th in this list. At the other end, the Magic are ranked 20th on this list despite a stellar 8-5 record.
Edit: As you all quickly noted, Minnesota is ranked 10th despite a 10-3 record and sole possession of the first seed in the West, an even bigger discrepancy than the Magic.
1.Boston Celtics 0
2.Philadelphia 76ers 0
3.Milwaukee Bucks +1
4.Cleveland Cavaliers +4
5.LA Clippers -2
6.Oklahoma City Thunder +10
7.Denver Nuggets -1
8.Golden State Warriors -3
9.Miami Heat +3
10.Minnesota Timberwolves -1
11.Atlanta Hawks -4
12.New York Knicks +3
13.Brooklyn Nets -3
14.Dallas Mavericks -2
15.Phoenix Suns -2
16.Los Angeles Lakers -2
17.Sacramento Kings +1
18.New Orleans Pelicans +2
19.Indiana Pacers -2
20.Toronto Raptors -1
20.Orlando Magic +2
22.Houston Rockets +1
23.Utah Jazz +1
24.Chicago Bulls -3
25.Charlotte Hornets +2
26.Memphis Grizzlies -1
27.Washington Wizards -1
27.Detroit Pistons 0
29.Portland Trail Blazers 0
30.San Antonio Spurs 0
https://www.espn.com/nba/bpi