LeBron James scored 28 points for Miami and Dwyane Wade finished with 24, but both missed big chances for the Heat late. James missed two free throws with 54.3 seconds left and Miami down one, and Wade was short on a layup that would have tied the game with 16 seconds remaining.
Mario Chalmers' three-pointer to tie the game bounced away on the final play, and the series was tied 1-1. Game 3 is Thursday.
Danny Granger scored 11 points and Paul George added 10 for Indiana, which took advantage of Heat forward Chris Bosh's absence and outrebounded Miami 50-40.
SPURS 108, CLIPPERS 92
SAN ANTONIO (AP) — Tim Duncan had 26 points and 10 rebounds and San Antonio, recharged after a weeklong layoff, wore down busy Los Angeles to win Game 1 of their Western Conference semifinals series.
Playing for the sixth time in 11 days, Los Angeles gave San Antonio its toughest first half of the playoffs before fading fast. And unlike their stunning Game 1 comeback at Memphis in the first round, the Clippers didn't have the wind this time.
Manu Ginobili added 22 points for the Spurs, who've won 15 in a row. It's the longest winning streak sustained in the NBA playoffs since the 2004 Spurs won 17 straight.
Eric Bledsoe led the Clippers with 23 points.
Game 2 is Thursday night.