NBA PLAYOFFS: LaMarcus Aldridge scores 38 points as the San Antonio Spurs shut down Oklahoma City 124-92 on Saturday night.

SAN ANTONIO — LaMarcus Aldridge had 38 points and the San Antonio Spurs dismantled the Oklahoma City Thunder 124-92 on Saturday night, never trailing in Game 1 of the second- round series.

Kawhi Leonard added 25 points, five rebounds and five assists in 22 minutes for San Antonio. The Spurs led by as many as 43 points and sat their starters in the fourth quarter to rest them for Game 2 on Monday night.

Aldridge broke out for his finest performance of the season after Memphis held him to 14.5 points in the first round, nearly seven points below his regular-season numbers. Aldridge was 18 for 23 from the field, including his first 3- pointer of the season and banking in a left-handed scoop shot as he was falling in the lane.

Leonard and Aldridge combined for 45 points in the first half, outscoring Oklahoma City as a team by four. Unfortunately for the Thunder, the rest of the Spurs were just as impressive early.

San Antonio matched a postseason franchise record for points in a quarter with 43 in the opening period.

Serge Ibaka led Oklahoma City with 19 points, but was limited to two rebounds.

Kevin Durant had 16 points, and Russell Westbrook added 14, but they were harassed into 11for-34 shooting.

The Spurs scored the most postseason points against the Thunder. They had 39 assists, which was more than the Thunder’s field goal total of 35.

San Antonio shot 82 percent in the opening quarter, including 3 for 4 on 3-pointers in taking a 23-point lead. The Spurs also blocked six shots, collapsing and surrounding the Thunder with multiple defenders whenever they drove into the lane.

The only scare came when Leonard grabbed the back of his left leg after landing on it awkwardly off a powerful one-handed dunk on the game’s opening possession.