Kawhi Leonard had 20 points and 14 rebounds, and the Spurs routed the Heat again, winning 107-86 on Thursday night to open a commanding 3-1 lead in the NBA Finals.
The Spurs can win their fifth NBA championship with a victory at home in Game 5 on Sunday and avenge their seven-game loss to Miami last year. And if the Heat are going to deny them again, it will take the biggest comeback in NBA Finals history.
LeBron James tried to keep the Heat in it with 28 points and eight rebounds, but Dwyane Wade was just 1 of 10 through three quarters and finished with 10 points.
No team has overcome a 3-1 deficit in the finals, and the way they were outclassed twice on their home floor makes it hard to imagine the two-time champions being the first.
Tony Parker added 19 points, and Tim Duncan had 10 points and 11 rebounds for the Spurs, who shot 57 percent from the field.