Nazz's Gymnastics Championship was a sporting event in "Rock-a-Bye Ed" hosted by Nazz and held on the Playground. The event consisted of various gymnastic acts performed by the kids in order to win ribbons. Kevin, who was the judge of the event, scored each act sardonically. There were five acts seen altogether.
The performance itself was actually an accident when Jimmy tripped on Plank, sending him airborne, then Jonny ran after Plank, ultimately crashing into the ground. Kevin found it amusing, thus giving him a perfect score.