Skateboarders compete

By BRENT DAVIDSON/Missourian
June 20, 2009 | 10:54 p.m. CDT
Zack Shipley, 14, of Hannibal, airs out of a quarter pipe during practice for the best trick competition at the Columbia Skatepark. The competition was part of National Skateboarding Day. Shipley entered the beginner class but was moved to intermediate class after completing his first trick.