Pokémon Season 1 Episode 33

The group arrive at the Laramie Ranch where a family of ranchers, with their daughter, Lara and her Ponyta, prepares for an annual Pokémon race. Ash takes over as Ponyta’s rider when Lara gets hurt due to Team Rocket’s interference. Then, Team Rocket helps a rival competitor to win the race by setting up traps for other participants. As the race continues, however, Ponyta evolves into Rapidash and wins the race.