When Ash first saw Hitmonchan practicing in the road, he thought it was wild and sent in Pikachu to battle it. Pikachu was hesitant but Ash taught it a "special punching move". The move proved unsuccessful and only left a scratch. It was then that its trainer, Anthony, appeared and told Hitmonchan not to lower its guard. It then easily overwhelmed Pikachu with its speed and power. After defeating Pikachu, its trainer's daughter appeared and then they left to train some more.
Anthony later used it to compete in the P1 Grand Prix. It defeated a Machamp, but was later forced to forfeit to Giant's stolen Hitmonlee due to Meowth's use of glue to keep it in place on the ring, leaving it open to attacks.