cavaliers 121, heat 100

Donovan Mitchell scored 30 points, Ty Jerome had 16 of his 28 points in the fourth quarter and the Cleveland Cavaliers beat the Miami Heat in Game 1 of the Eastern Conference first-round playoff series.

It was the seventh straight series where Mitchell has scored at least 30 points in Game 1, tying Michael Jordan, who had two streaks of seven games.

Bam Adebayo had 24 points and Tyler Herro added 21 for the Heat. They are the first No. 10 seed to advance to the playoffs out of the Play-In Tournament.

celtics 103, magic 86

As the Celtics were taking control of their playoff opener against the Orlando Magic, Boston’s best player was on his back in pain and tugging at his wrist.

As chants of “MVP!” rained down on him, Jayson Tatum eventually rose to his feet and was loudly cheered as he paced toward the bench.

“I just landed on it. It was throbbing for a second,” Tatum said. “It kind of went away.”

And brought a sigh of relief for a Boston team just starting its quest to repeat as NBA champions.

thunder 131, grizzlies 80

The Oklahoma City Thunder beat the Memphis Grizzlies in Game 1 of their first-round Western Conference playoff series, the fifth-biggest margin of victory in NBA postseason history.

The 51-point margin was seven points shy of the record and was the largest Game 1 win in NBA playoff history.

Aaron Wiggins scored 21 points, Jalen Williams scored 20 points and Chet Holmgren had 19 points and 10 rebounds. Shai Gilgeous-Alexander, the league’s scoring champion with nearly 33 points per game, scored just 15. The Thunder still shot 50.5% from the field.

“We played to our identity,” Gilgeous-Alexander said. “Nothing more, nothing less than that. We were who we were all year ... and it’s going to be the key to our success, just staying true to who we are.”