PF Draymond Green scored 21 points for the Warriors, who shot 53.5 percent from the field, including 17 of 29 (58.6 percent) from 3-point range.
G Khris Middleton (sore throat) missed the shootaround Monday but was in the starting lineup. He scored eight points in 36 minutes.
C Ian Mahinmi missed his fourth consecutive game with a strained left half. He may be able to return for Game 5.
F Al-Farouq Aminu had 25 points for the Trail Blazers Monday.
G Damian Lillard scored 34 points for the Trail Blazers Monday.