Halverson was one of the participants in the Pokémon Ping Pong Tournament with his Marowak. Their first opponent was Jessie, who was partnered with Meowth. Halverson and Marowak won by default after Jessie's disqualification and moved on to the second round. They would go on to be defeated by Dawn and Ambipom in the third round.
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This listing is of Halverson's known Pokémon:
|Marowak is Halverson's only known Pokémon. It was first seen in a Pokémon Ping Pong Tournament, where it won against Jessie and Meowth after the latter accidentally cut the ball up, disqualifying them from the tournament. It ultimately ended up losing to Dawn and her Ambipom.
None of Marowak's moves are known.
|To Thine Own Pokémon Be True!
Halverson has competed in the following Pokémon competitions:
|This article is part of Project COD, a Bulbapedia project that aims to write comprehensive articles on each one-time character of the Pokémon anime.