Utah's world-class yo-yo champion Dale Myrberg will be among participants in the 9th annual national Yo-Yo Day on today at Trolley Square.

Beginners to experts are invited to attend the competition from noon to 4 p.m. at the Trolley Square amphitheater, where Myrberg will present a half-hour show and then judge competitors.Trophies and yo-yos, courtesy of sponsors Hijinks at Trolley Square and What's Next Yo-Yo Manufacturing Co., will be presented. The yo-yo contest is free. Entrants may register up until the day of the contest at Hijinks on the second level of Trolley Square. Yo-yos are available to borrow for the competition.