From Bulbapedia, the community-driven Pokémon encyclopedia.
Scooter (Japanese: セキモト Sekimoto) is a Trainer that debuted in Reunion Battles In Nimbasa!. He participated in the Club Battle tournament and was Luke's opponent. Not much is known about him as he was defeated by Luke and his Golett in the first round and knocked out of the tournament.
Scooter has at least two other Pokémon as those who entered the Club Battle were required to enter with three Pokémon.
Club Battle - Top 16 (Cilan Versus Trip, Ash Versus Georgia!)