The World Trampoline and Tumbling Championships, held annually except in the Olympic year, determines the men’s and women’s World champions in four events: trampoline, synchronized trampoline, tumbling and double mini-trampoline. The World Age Group Competition showcases the world’s best boys and girls in those four events in four age groups: 11-12, 13-14, 15-16 and 17-18 years of age. The two events are expected to showcase more than 1,100 athletes.