U.S. leads after prelims at the Pan American T&T Championships

Kalon Ludvigson and Marina Moskalenko are in the lead in tumbling after the preliminary round of competition at the 2012 Pan American Trampoline and Tumbling Championships, at the Josefa OrtA A-z de DomA A-nguez Auditorium in Santiago de Queretaro, Qro., Mexico.