Japanese Title: Challenge! Pokémon Marine Athletic!!
Original Airdate: April 23, 2021
US Airdate: January 21, 2022
At the Pokémon Marine Athletic Race, Chloe meets Kiley, a Vaporeon trainer. Ash, Goh and Chloe enter the Kids Marine Athletic Race with Dracovish, Dewgong and Eevee.
- Combination Attack: Kiley's Vaporeon uses Hydro Pump with Chloe's Eevee using Copycat to copy the move to defeat a wild Huntail.
- Took a Level in Badass: Ash's Dracovish learns Fishious Rend, using it to destroy the boulders blocking the cave Chloe and her Eevee were trapped in.