Hall of Fame jocky Calvin Borel, known for being a three-time Kentucky Derby winner, has announced his retirement.

Former agent and close friend Jerry Hissam told media outlets that Borel felt “it was time… it was just time.”

Borel had an amazing career, winning 5,146 races in 33 years. Borel was nicknamed “Bo-rail” for his knack of finding a spot along the inside of the track. His talent also led him to become the only jockey to win three Derbies in four years. In 2007 Borel rode Street Sense to victory, followed by wins with Min That Bird, Super Saver, and Horse of the Year Rachel Alexandra. The horses he has rode throughout his career have earned more than $127 million.

Borel’s final race was last week where he placed fourth at Gazebo Stakes at Oaklawn. His last win was on March 18th, where he was aboard Thrylos at Oaklawn.