Halverson was one of the participants in the Pokémon Ping Pong Tournament with his Marowak. Their first opponent was Jessie with Meowth. Halverson and Marowak won by default after Jessie's disqualification and moved on to the second round. They would then 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 Meowth cut the ball up, disqualifying them from the tournament. It ultimately ended up losing to Dawn and her Ambipom.|
|Debut||To Thine Own Pokémon Be True!|