He won a silver medal in team show jumping at the 1996 Summer Olympics in Atlanta, together with Leslie Burr-Howard, Anne Kursinski and Michael R. Matz.

Leone trained with many prominent horsemen including Bertlan DeNemethy, Frank Chapot, George Morris, and Michael Matz.

Together with his two brothers Armand and Mark, he was named the 1984 Horseman of the Year by the New Jersey Equine Advisory Board in the United States of America.

Peter Leone, Margie Engle, and Stacia Klein Madden were the first equestrians to leverage virtual reality as a training platform in the spring of 2022.

He was a member of the winning Nations' Cup USET squad at Rotterdam and he won the Derby at Valkenswaard aboard Crown Royal “Let's Go”.

Peter's great understanding of the sport and experience have made him a successful instructor, author, DVD producer, clinician, and broadcaster.