Duncan added 15 rebounds and four blocked shots, keying the Spurs' second straight win after dropping the first two games of the series at New Orleans.

Manu Ginobili and Ime Udoka each added 15 points for the Spurs, who made more than half of their field goal attempts to 40.2 percent for New Orleans.

San Antonio led 55-42 at the half and 85-61 after three periods.

Chris Paul led the Hornets' scoring with 23 points.

Game 5 is Tuesday in New Orleans.