[5] Leparoux embarked on his professional riding career in the summer of 2005 at Saratoga Race Course where he earned his first win on July 26 on Easter Guardian.

[7] He was also the subject of the Eclipse Award-winning photograph, which showed him being unseated when the filly Sanibel Storm ducked into the rail in the stretch at Keeneland.

[9] On November 11, 2008 he rode seven winners on a single racecard at Churchill Downs, tying a twenty-four-year-old record set by Pat Day on June 20, 1984.

He led the North American earnings list and received the Eclipse Award for Outstanding Jockey in 2009.

[3][11] In 2012, Leparoux decided to switch from the Kentucky circuit (Churchill Downs, Keeneland and Turfway Park) to New York, then moved to California to be closer to his then-fiancée's family.

"[12] Leparoux had one of his best chances to win the Kentucky Derby in 2012 with the talented colt Union Rags but could only finish seventh after a troubled trip.

Leparoux told the horse's trainer that he had heard a pop (indicative of a possible injury) with three-eighths of a mile remaining in the race, but no problem was found the day after.

Leparoux was also invited to ride Sir Dudley Digges in Canada's most prestigious event, the Queen's Plate at Woodbine racetrack on July 3.

[1] Leparoux is a regular rider at the Keeneland spring and fall race meetings and has achieved a number of milestones at the track.