MIAMI — Jaylen Brown scored 43 points, Jayson Tatum had his first triple-double of the season and the Boston Celtics rode the strength of a record-setting first quarter to beat the Miami Heat 147-129 on Wednesday night.Tatum finished with 25 points, 18 rebounds and 11 assists for Boston, which scored 53 points in the first quarter — a franchise record that tied the second-highest total for an opening quarter in NBA history. Sam Hauser added 23 for the Celtics, who are 31-0 when scoring at least 117 points this season and are 10-1 in their last 11 games following a loss.The Celtics led by as many as 27, then saw the lead trimmed to as little as nine early in the fourth quarter. Boston (51-25) holds the No. 2 spot in the Eastern Conference race, four games behind No. 1 Detroit.Bam Adebayo had 29 points and 10 rebounds for Miami, which tied a franchise record by hitting 24 3-pointers. The Heat made 24 on three other occasions.Davion Mitchell scored 21, while Tyler Herro and Pelle Larsson each scored 18 and Jaime Jaquez Jr. added 17 for the Heat (40-37).Miami remained in the No. 10 spot in the East play-in race. The Heat are a half-game behind No. 8 Orlando and No. 9 Charlotte, teams both with 40-36 records.The Celtics made 11 of their first 13 shots on the way to the sizzling start, then closed the first quarter on a 24-3 run that turned a one-point deficit into a 20-point lead — and that burst came in just over four minutes.Popular ReadsBost …
