Celtics 103, Miami 91

It's all about the milestones. The Celtics victory, combined with an Atlanta loss to the Clippers, clinched a playoff spot for Boston. For the Heat, the milestones were a sixth straight loss, a season-low eight games below .500, and a winless homestand of five games or more for the first time in team history.

The Celtics pulled away in the fourth quarter, going on a 10-0 run early in the period and turning a one-point deficit into a nine-point lead with 9:19 left. Jayson Tatum scored 28 points, and Jrue Holiday got 25. Jaylen Brown (right knee) and Kristaps Porzingis (viral illness) both sat this game out. Since the All-Star break, Brown's routine has been to play three games, then rest for one. 

The Celtics are 48-19 and eight games back in the Eastern Conference from the Cavs.

Next game is tomorrow night in Brooklyn.