Boise State (1-1) led 47-44 at halftime, but the Broncos quickly pushed it to double digits and led by 25 with 9:18 to play.
Webb III made 9 of 14 shots and grabbed 11 rebounds. Drmic was 6 of 9 from the field, including 4 of 7 from beyond the arc. Chandler Hutchison had career highs of 12 points and 11 rebounds, and Mikey Thompson added 17 points and five assists.
Drmic had 23 points in a loss to Montana on Friday.
The teams combined to make 24 3-pointers.