The Duel Monsters Regional Cup was a Duel tournament that took place in Heartland in Yu-Gi-Oh! ZEXAL manga.
Kyoji Yagumo and Ryoga Kamishiro took part of this event, where as Kyoji wanted to steal the Deck of the person who was most likely to win the tournament, but failed, and Shark took the blame for it. In the final match, Shark lost on purpose as he thinks Kyoji represented everyone's hopes and dreams, but that he was just a shadow. Kyoji stands in the arena and watches as Shark leaves, with a sad expression on his face.