From Bulbapedia, the community-driven Pokémon encyclopedia.
Mason was a minor character who battled Delaney in Outrageous Fortunes. He was unnamed in the Japanese dub.
Mason was the seventh consecutive Trainer to battle Delaney. He hoped that his Hitmontop would be able to put an end to Poliwrath's winning streak. However, Delaney proved to be more powerful and defeated the young Trainer's Fighting-type.
|| Hitmontop ♂
| Hitmontop was one of the Pokémon battling Delaney's Poliwrath. It wasn't long before Poliwrath was able to defeat Hitmontop with its move combination.
|| Outrageous Fortunes