Shiozaki

Simeon is a minor recurring character of the Pokémon anime. He first appeared in Jostling for the Junior Cup!, where he participated in the Pokémon World Tournament Junior Cup and was Horatio's first opponent. However, he was defeated by him and eliminated from the tournament. He made a cameo appearance in Goodbye, Junior Cup - Hello Adventure!, where he lined up with all the other competitors in front of Alder, Cynthia, Caitlin and Freddy O'Martian. (Source: Bulbapedia)