Part 1: Just started (no badges)
Just started (no badges) opens 6 areas. There are 27 trainers standing in them. The fights at this checkpoint are Rival Bianca (Snivy), Rival Bianca (Oshawott), Rival Bianca (Tepig), and 21 more.
Where to go
Route 1
Wild: Audino 80% · Lv —, Basculin 60% · Lv —, Goldeen 60% · Lv —, Azumarill 30% · Lv — +26 more
Trainers: Pkmn Ranger Brenda Lv 52, Pkmn Ranger Claude Lv 52, Fisherman Sean Lv 50
Route 2
Wild: Audino 60% · Lv —, Patrat 20% · Lv —, Purrloin 20% · Lv —, Caterpie 10% · Lv — +13 more
Trainers: Youngster Jimmy Lv 7, Lass Mail Lv 7, Youngster Roland Lv 7, ★ Rival Bianca (Snivy) Lv 10, ★ Rival Bianca (Oshawott) Lv 10, ★ Rival Bianca (Tepig) Lv 10
Striaton City
Wild: Azumarill 100% · Lv —, Marill 100% · Lv —, Basculin 60% · Lv —, Psyduck 60% · Lv — +2 more
Trainers: ★ Rival Cheren (with Snivy) Lv 12, ★ Rival Cheren (with Oshawott) Lv 12, ★ Rival Cheren (with Tepig) Lv 12, Waiter Maxwell Lv 11, Waitress Tia Lv 12
Pick up: TM10 Hidden Power, HM01 Cut
Nuvema Town
Trainers: ★ Rival Bianca (Snivy) Lv 5, ★ Rival Bianca (Oshawott) Lv 5, ★ Rival Bianca (Tepig) Lv 5, ★ Rival Cheren (with Snivy) Lv 5, ★ Rival Cheren (with Oshawott) Lv 5, ★ Rival Cheren (with Tepig) Lv 5 +3 more
Accumula Town
Trainers: ★ Pkmn Trainer N Lv 6
Striaton Gym
★ Rival Bianca (Snivy) — Nuvema Town
| Pokémon | Moves | |
|---|---|---|
 | Snivy Lv 5 · Contrary Clean version: Overgrow |
★ Rival Bianca (Oshawott) — Nuvema Town
| Pokémon | Moves | |
|---|---|---|
 | Oshawott Lv 5 · Vital Spirit Clean version: Torrent |
★ Rival Bianca (Tepig) — Nuvema Town
| Pokémon | Moves | |
|---|---|---|
 | Tepig Lv 5 · Adaptability Clean version: Blaze |
Also fought around here
This game's documentation doesn't say where 11 of its 355 fights happen, so those trainers are on no part of this walkthrough; they are all on the Trainers page.