Hall of Fame trainer Bobby Frankel pulled off an upset Friday in the opening race on Ladies’ Day at the Breeders’ Cup at Santa Anita, and former assistant Chad Brown quickly followed in his mentor’s footsteps.

Frankel’s Ventura surged past heavy favorite Indian Blessing midway through the stretch to take the $1 million BC Filly & Mare Sprint, and Brown backed it up by taking the inaugural $1 million Juvenile Fillies Turf half an hour later with Maram.

Ventura, a 4-year-old, moved effortlessly by Indian Blessing in the final eighth-of-a-mile to win by four lengths and cover the seven furlongs in a blistering 1:19.90 over the synthetic Pro-Ride surface.

“She made a devastating run around the turn,” Frankel said. “I was just hoping that she sustained it.”

The win was the sixth Breeders’ Cup victory for Frankel, moving him into a tie for third with Richard Mandella and Neil Drysdale. Ventura paid $7.40, $3.40 and $3.

Indian Blessing, hoping to become a repeat Breeders’ Cup winner for trainer Bob Baffert, held on for second. The 3-year-old had won three straight and captured the BC Juvenile Fillies at Monmouth last year. Zaftig took third.

“She did all she could but the winner just ran a tremendous race, almost a track record,” Baffert said. “Frankel was right. He was telling me all week he was going to get me and he did.”

It took Frankel 17 years to break through at horse racing’s richest weekend. It took Brown, who spent several years working for Frankel before going out on his own following last year’s Breeders’ Cup, one race.

Maram held off a challenge from Heart Shaped at the wire to give Brown a win his Breeders’ Cup debut.

Maram, with Jose Lezcano aboard, stretched her unbeaten streak to three, edging the late-charging Heart Shaped by a nose. The 2-year-old covered the mile in 1:35.15 and paid $24.20, $13.20 and $6.40.

Heart Shaped, piloted by John Murtagh, couldn’t quite close the gap.

Laragh, the 5-2 favorite, took command early and led by four lengths at the turn for home before fading to third under Edgar Prado.

The races kicked off the two-day Breeders’ Cup. Friday was devoted to exclusively to races for fillies and mares. The Juvenile Fillies, Filly & Mare Turf and the Ladies’ Classic were slated to run later Friday.