BYU student wins 2015 Yo-Yo world championship - The Daily Universe
How to Maintain Your Yoyo and Clean Bearing Easy - (With World Champion) - YouTube
Chico's Gentry Stein takes world yo-yo title – Chico Enterprise-Record
Amazing Yo-Yo World Champion skills | wordlessTech
Hajime Miura - 3A Final - 1st Place - World Yoyo Contest 2017 - YouTube
Chico's Gentry Stein wins national yo-yo competition – Chico Enterprise-Record
Watch Obsessed | How This Guy Became a World Yo-Yo Champion | Wired Video | CNE | Wired.com | WIRED
Shion Araya - 1A Final - 1st Place - World Yoyo Contest 2017 - YouTube
Competitors Go to Extremes in World Yo-Yo Contest - The New York Times
World Yo-Yo Champion's Routine Will Mesmerize You
C3yoyodesign - The 7X World Champion, Team C3 Japan, Rei Iwakura's new signature yoyo "FLAWLESS" has a new revolution in 2020. Worldwide first release at 2020-06-30 10PM JST on Yo-yo Store REWIND,