Hollie Doyle rode a brilliant 2,521-1 five-timer at Kempton on Wednesday night.
She completed the achievement when powering home late aboard 8-1 chance Madrinho in the Unibet-sponsored 6f handicap. It was her third win on the night for trainer Tony Carroll who also trained winners Della Mare and 14-1 shot Sir Titan.
Doyle also took the night's featuring 'Road To The Kentucky Derby' Conditions Stakes on Godolphin's Highland Avenue with Laos her other winner.
She almost made it six when travelling strongly on the Alan King-trained Chinese Whisperer in the finale, but the four-year-old was caught out by fast-finishing rivals, eventually resulting in a fourth-place finish behind winner Merweb.