Pokémon: Diamond and Pearl · Sinnoh League Victors arc
DP186 · Familiarity Breeds Strategy!
ライバル決戦！サトシ対シンジ！！
Synopsis
What happens.
Determined to settle their long-standing rivalry once and for all, Ash and Paul are set to face off in the first quarterfinals showdown of the Lily of the Valley Conference. Ash decides to begin with Pikachu, and Paul orders out his first Pokémon, Aggron.
Synopsis adapted from Bulbapedia's DP186 entry, used under CC-BY-NC-SA 2.5.
Story arc · DP158-DP193
Sinnoh League Victors.
Lily of the Valley Conference. Ash defeats Paul in the quarterfinals (the franchise's most-cited rival victory). Falls to Tobias's Darkrai then Latios in the semifinals. Cast splits at the end.
Read the full Diamond & Pearl guidePokémon featured · 20
Who appears.
Linked entries open the species page on the Pokédex. Items without a sprite (alternate forms, regional variants, generic group references) fall back to a name pill.
More from this arc
Other episodes in Sinnoh League Victors.
Episode synopsis from Bulbapedia, CC-BY-NC-SA 2.5. Editorial context (arc affiliation, cultural moments, character signatures) hand-verified May 2026. Pokémon, character names, and series titles © Nintendo, Game Freak, Creatures Inc., The Pokémon Company, OLM Inc. This is an unofficial fan reference.