Tyson used Donphan in a round of the Hoenn League, but fainted, to which its defeat was marked on the scoreboard. Before his battle against Ash, Tyson gave all his Pokémon a speech, saying that they needed to give their best to defeat Ash's Pokémon, and all his Pokémon started to train for the battle.
After his Hariyama was defeated, Tyson sent Donphan to battle Ash's Swellow in the Hoenn League quarter-finals. It used Sandstorm, to which Swellow flapped its wings to get rid of this effect. Donphan then used Rollout, continuously inflicting damage to Swellow. As Donphan went to defeat Swellow, the latter pushed Dophan's legs against its ears. It then flew and dropped Donphan on a rock, defeating it.