McMahon, a Saratoga Springs native, now resides in Versailles, Kentucky. A graduate of Cornell University and the Irish National Stud, he co-owns McMahon and Hill Bloodstock LLC with partner, Jamie Hill. McMahon is also the manager and founder of Bourbon Lane Racing Stable and Spruce Lane Pinhooking.
McMahon has purchased 21 graded stakes horses including 2012 Grade II winner and Grade I placed, Bourbon Courage. He has also purchased 22 mares who have produced graded stakes horses including the dam of Funny Cide. McMahon’s parents own and operate McMahon of Saratoga Thoroughbreds in Saratoga Springs, New York.
McMahon and his wife, Natanya, co-own Spruce Lane Farm in Versailles, Ky. where they reside with their two children. He also currently serves on the board of the Thoroughbred Owners and Breeders Association, is former president of the New York Thoroughbred Breeders Association and former vice president of the Belmont Child Care Association.