Selected ninth overall last month, the former Gonzaga star was 9 of 12 from the field with two 3-pointers, nine rebounds and two blocks. He scored 10 points in the third quarter as Washington took a 52-51 lead.
Garrison Mathews added 11 points for Washington (2-2), and Isaac Bonga had 10.
Charles Brown led Atlanta (1-3) with 16 points. Tahjere McCall scored all 12 of his points in the first half. DeAndre Hunter, the No. 4 overall pick, did not play for the second straight game.
Chris Clemons, the national scoring leader last season at Campbell, scored 19 points in Houstons victory over Utah.
Clemons and Zach Thomas each scored 11 points in the first half as Houston build a 51-38 lead. Houston (2-2) led by as many as 20 points in the second half.
Thomas finished with 12 points, and Gary Clark and Johnathan Williams each had 13.
Tony Bradley had 23 points, 13 rebounds and two blocks for Utah (2-2), and Willie Reed added 13 points. The Jazz has 21 turnovers.
Dewan Hernandez scored 18 points, Richard Solomon had 14 points and 10 rebounds and Toronto kept Indiana winless.
Malcolm Miller and Terence Davis each added 16 points for Toronto (2-2). The Raptors had a 13-2 run in the fourth quarter for an 83-71 lead.
Aaron Holiday led Indiana (0-4) with 23 points, but was just 6 of 26 from the field. Brian Bowen II added 17 points and seven rebounds, and Alize Johnson had 12 points, nine rebounds and five assists. Indiana star Victor Oladipo sat courtside.