Kawhi Leonard scored a career-high 29 points, and the Spurs made a Finals-record 75.8 percent of their shots in the first half in a 111-92 victory over the Miami Heat on Tuesday night that gave them a 2-1 lead.
The Spurs made 19 of their first 21 shots and finished 25-for-33 in the first half, bettering the 75 percent shooting by Orlando against the Lakers in the 2009 Finals.
The Spurs led by as much as 25 and were only briefly challenged in their second lopsided victory in the series.
LeBron James and Dwyane Wade each had 22 points for the Heat, who host Game 4 on Thursday.