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The United States Trampoline And Tumbling Association is over 43 years old. It was founded in 1971 by Larry Griswold and George Nissen (the founder of the trampoline). The U.S.T.A. started out with only about 200 members that competed in tumbling, trampoline, and double-mini trampoline and offered only one division of competition.

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STTA — USA Gymnastics T&T Region 3

Local squad dominates state meet

Trampoline & Tumbling National Team members assemble for year's largest camp • USA Gymnastics

More than 50 Jacksonville gymnasts to compete in national tumbling event

Energy Dance and Tumbling Company

Trampoline park injuries jump 12-fold as the trend spreads

Home USA Gymnastics Region 4 Trampoline & Tumbling

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Women's gymnastics ushers in inaugural Mountain West season - Air Force Academy Athletics

Home United States Tumbling and Trampoline Association

Tumblers compete at the USTA National Championships, Sports