Sinnoh Leaders

Sinnoh Leaders Tournament

The Sinnoh Leaders Tournament is unlocked after you've beaten the Unova Leaders Tournament once.

The foes you face will be chosen at random. Only seven of the Gym Leaders listed below will participate in the tournament, and you'll only fight three of them due to it being an elimination tournament. Each of the Gym Leaders will use three of their Pokemon, selected at random (four for Double Battles).

You'll win 2 BP if you win the tournament in a Single or Double Battle or 3 BP if you win the tournament in a Triple or Rotation Battle.

Boss Fight
PKMN Trainer
PKMN Trainer Roark  
Rampardos Rampardos Male Rock Lv. 50
Probopass Probopass Male Rock / Steel Lv. 50
Sudowoodo Sudowoodo Male Rock Lv. 50
Onix Onix Male Rock / Ground Lv. 50
Golem Golem Male Rock / Ground Lv. 50
Relicanth Relicanth Male Water / Rock Lv. 50
Boss Fight
PKMN Trainer
PKMN Trainer Gardenia  
Roserade Roserade Female Grass / Poison Lv. 50
Carnivine Carnivine Female Grass Lv. 50
Cherrim Cherrim Female Grass Lv. 50
Tangrowth Tangrowth Female Grass Lv. 50
Leafeon Leafeon Female Grass Lv. 50
Torterra Torterra Male Grass / Ground Lv. 50
Boss Fight
PKMN Trainer
PKMN Trainer Maylene  
Lucario Lucario Male Fighting / Steel Lv. 50
Infernape Infernape Male Fire / Fighting Lv. 50
Toxicroak Toxicroak Female Poison / Fighting Lv. 50
Gallade Gallade Male Psychic / Fighting Lv. 50
Medicham Medicham Female Fighting / Psychic Lv. 50
Machamp Machamp Male Fighting Lv. 50
Boss Fight
PKMN Trainer
PKMN Trainer Wake  
Floatzel Floatzel Male Water Lv. 50
Empoleon Empoleon Male Water / Steel Lv. 50
Lumineon Lumineon Female Water Lv. 50
Gastrodon Gastrodon Male Water / Ground Lv. 50
Quagsire Quagsire Female Water / Ground Lv. 50
Gyarados Gyarados Male Water / Flying Lv. 50
Boss Fight
PKMN Trainer
PKMN Trainer Fantina  
Mismagius Mismagius Female Ghost Lv. 50
Drifblim Drifblim Female Ghost / Flying Lv. 50
Spiritomb Spiritomb Female Ghost / Dark Lv. 50
Dusknoir Dusknoir Female Ghost Lv. 50
Rotom Rotom   Electric / Ghost Lv. 50
Gengar Gengar Female Ghost / Poison Lv. 50
Boss Fight
PKMN Trainer
PKMN Trainer Byron  
Bastiodon Bastiodon Male Rock / Steel Lv. 50
Steelix Steelix Male Steel / Ground Lv. 50
Bronzong Bronzong   Steel / Psychic Lv. 50
Magnezone Magnezone   Electric / Steel Lv. 50
Aggron Aggron Male Steel / Rock Lv. 50
Forretress Forretress Male Bug / Steel Lv. 50
Boss Fight
PKMN Trainer
PKMN Trainer Candice  
Froslass Froslass Female Ice / Ghost Lv. 50
Abomasnow Abomasnow Female Grass / Ice Lv. 50
Weavile Weavile Female Dark / Ice Lv. 50
Glaceon Glaceon Female Ice Lv. 50
Mamoswine Mamoswine   Ice / Ground Lv. 50
Glalie Glalie Female Ice Lv. 50
Boss Fight
PKMN Trainer
PKMN Trainer Volkner  
Electivire Electivire Male Electric Lv. 50
Luxray Luxray Male Electric Lv. 50
Raichu Raichu Male Electric Lv. 50
Rotom Rotom   Electric / Ghost Lv. 50
Jolteon Jolteon Male Electric Lv. 50
Electrode Electrode   Electric Lv. 50

You'll need to beat the Kanto Leaders, Johto Leaders, Hoenn Leaders, and Sinnoh Leaders Tournaments in order to unlock the World Leaders Tournament. Assuming you've done this, go on ahead and take on the World Leaders Tournament, which is a mashup of all of the regions' Gym Leaders!