Miami, FL (SportsNetwork.com) - Behind a hot-shooting first half and a solid all-around effort from Kawhi Leonard, the San Antonio Spurs regained home- court advantage in the NBA Finals with a resounding road win in Game 3. The Spurs shot 75.8 percent from the floor in the first half, while Leonard finished with a career-high 29 points, as San Antonio took a 111-92 triumph over the Miami Heat on Tuesday at AmericanAirlines Arena. San Antonio set an NBA Finals record with a 25-of-33 shooting effort over the opening 24 minutes and held a 71-50 lead at the break before holding off the Heat in the second half to claim a 2-1 lead in this best-of-seven series. Leonard, who had scored just 18 points over the first two games of the Finals, shot 10-of-13 from the floor and went 6-of-7 from the free throw line for the Spurs, who snapped Miami's 11-game home winning streak in the playoffs. LeBron James supplied 22 points, seven assists, five rebounds and five steals, but committed seven of Miami's 20 turnovers in the setback. Dwyane Wade also netted 22 points, while Rashard Lewis went 4-of-5 from 3-point range en route to 14 points for the Heat, who will look to even the series Thursday when they host Game 4.