Leigh Hennessy is a two-time double mini-trampoline world champion (1976, 1978) and won a silver medal in synchronized trampoline at the 1976 World Championships. She was the first athlete, male or female, to win all three trampoline events— individual, synchronized, and double mini— at the national championships.
Hennessy was honored by the International Trampoline Federation in 1982 for her contribution to the sport of trampoline. From 1978-1992, she was listed in the Guinness Book of World Records with the highest double mini-trampoline score in international competition.
The University of Southwestern Louisiana graduate worked as a movie stuntwoman and wrote for Glenn Sundby Publications following her competitive years. Her father, Jeff Hennessy, is also a USA Gymnastics Hall of Fame inductee, making the Hennessys the only father-daughter pair in the Hall of Fame.