Hayden's Tauros battled against
Ash's Pikachu in a Pokémon World Championships Normal Class battle in a park in Vermilion City just after
Goh caught his Exeggcute. Goh's Rotom Phone noted that the Tauros herd member with the longest, thickest, and most-scarred horns is said to be the leader. Goh then looked at
Hayden's Tauros's horns to see that they were long, thick, and really scarred and realized that it might be a leader. Despite the initial worry of Tauros being a very strong Pokémon, it was defeated by
Ash's Pikachu to give
Ash Ketchum the battle victory.