INGLEWOOD, Calif. (AP) — Arethusa won the $100,250 Sharp Cat Stakes for 2-year-old fillies by 8¼ lengths at Betfair Hollywood Park on Saturday.

Ridden by Corey Nakatani, Arethusa ran 1 1/16 miles on Cushion Track in 1:45.41 and paid $23, $8 and $4.60 at 10-1 odds. The winning margin and win payout both set records for the race. The old margin of victory was 4¼ lengths by May Day Rose in 2010, and the old payout was $23 by Midnight Ballet last year.

Arethusa earned her first victory after losing three times at Del Mar and Santa Anita. She won $75,610.

"Arethusa has just improved every race," trainer Eoin Harty said. "She's a super mover and she's trained here basically all of her career. I knew she wouldn't get tired."

Be Proud returned $3.40 and $3, while Saintly Joan was another nine lengths back in third and paid $3.80 to show.

Bob Baffert trained Be Proud and Georgia, who finished fifth.