Dragunov (3), at 8-1, passed four horses near the sixteenth pole and powered ahead to beat 6-1 shot Southern Sea (9) by 5 lengths in Thursday's third race at Gulfstream Park West.
The race was the opening leg of the Rainbow 6..
The carryover coming in was $396,350. Bettors added $163,610 to the pool.
The optional claiming race was 7 1/2 furlongs on turf, with Dragunov wining in 1:31.56 over the course listed as Firm. Apprentice Cristian Torres rode Dragunov for trainer Armando De La Cerda.