The Celtics defeated the Raptors in Game 1, 112-96, behind 21 points each from Jayson Tatum and Marcus Smart. Kemba Walker added 18, as Daniel Theis and Robert Williams won the center battle against Marc Gasol and Serge Ibaka.
Toronto opened the second quarter with a 10-0 run that proved to be its only significant dig into an 18-point deficit. Ibaka scored four straight points, before solid bench rotations from Semi Ojeleye defensively and Brad Wanamaker buried Toronto.