Those new to T&T may feel that this event is similar to vault in artistic gymnastics. Although it isn’t exactly the same, it uses the same concept to perform skills. The event begins when a competitor runs down the runway to build up speed, then jumps onto a miniature trampoline, competes a flip, and dismounts off onto a mat, trying to land the skill. The competitor will generally perform one flip on the trampoline and one flip off of it. As the levels get higher, so do the tricks performed!

Source: www.flogymnastics.com