Warren’s Lady Slew rallied from off the pace in the fifth race at Del Mar on Friday to prevail by a length in her career debut and become the first career winner for California-based freshman sire Slew’s Prince.

Trained by Clifford Sise Jr. for owner-breeder Benjamin C. Warren, Warren’s Lady Slew completed 5 1/2 furlongs in 1:04.78 to win the maiden claiming race. John Sadler claimed Warren’s Lady Slew for $32,000 on behalf of Barber, Barber, and La Cresta Farms.

Slew’s Prince, an eight-year-old by Slew’s Royalty out of the winning Stalwart mare Stalwart Princess, stood the 2008 season for $1,500 at Warren’s Thoroughbreds in Hemet, California. He has five-two-year-olds in his first crop.

Slew’s Prince amassed five wins, five seconds, and eight thirds in 32 career starts and earned $308,929 in four seasons for Warren. Slew’s Prince finished on the board five times in stakes races, including a runner-up finish in the 2006 Robert K. Kerlan Memorial Handicap at Hollywood Park and a third-place finish in the Fort Mason Stakes at Golden Gate Fields to close his career.