Pokedex Randomizer

Phase 4 section

Pokemon Yellow Routes 9 and 10 Walkthrough

Routes 9 and 10 section for the Pokemon Yellow walkthrough with wild Pokemon, trainers, items, hidden items, coordinates, and boss strategy.

By Damodar Sharma Updated June 23, 2026 Walkthrough

Cut east from Cerulean, collect route items, and reach Rock Tunnel. This page is a standalone section for Phase 4: Rainbow Badge, with source-backed Yellow encounter, trainer, item, hidden item, and boss data.

Source maps

Route 9, Route 10, and Rock Tunnel Pokemon Center.

Wild rows21 Trainers15 Items4

Route plan

Route 9/10 trainers are a step up from Vermilion. Flash makes Rock Tunnel much easier but is technically optional.

Wild Pokemon

Area / subarea Game Method Pokemon Level Odds Condition / requirement
Route 9YellowTall grass / cave floor Nidoran M Yellow sprite Nidoran M 16-1830%Encounter rate 15; no time-of-day split in Yellow.
Route 9YellowTall grass / cave floor Nidoran F Yellow sprite Nidoran F 16-1830%Encounter rate 15; no time-of-day split in Yellow.
Route 9YellowTall grass / cave floor Rattata Yellow sprite Rattata 1815%Encounter rate 15; no time-of-day split in Yellow.
Route 9YellowTall grass / cave floor Spearow Yellow sprite Spearow 179.8%Encounter rate 15; no time-of-day split in Yellow.
Route 9YellowTall grass / cave floor Nidorino Yellow sprite Nidorino 185.1%Encounter rate 15; no time-of-day split in Yellow.
Route 9YellowTall grass / cave floor Nidorina Yellow sprite Nidorina 185.1%Encounter rate 15; no time-of-day split in Yellow.
Route 9YellowTall grass / cave floor Raticate Yellow sprite Raticate 204.3%Encounter rate 15; no time-of-day split in Yellow.
Route 9YellowTall grass / cave floor Fearow Yellow sprite Fearow 191.2%Encounter rate 15; no time-of-day split in Yellow.
Route 10YellowTall grass / cave floor Magnemite Yellow sprite Magnemite 16-2250%Encounter rate 15; no time-of-day split in Yellow.
Route 10YellowTall grass / cave floor Rattata Yellow sprite Rattata 1820%Encounter rate 15; no time-of-day split in Yellow.
Route 10YellowTall grass / cave floor Nidoran M Yellow sprite Nidoran M 179.8%Encounter rate 15; no time-of-day split in Yellow.
Route 10YellowTall grass / cave floor Nidoran F Yellow sprite Nidoran F 179.8%Encounter rate 15; no time-of-day split in Yellow.
Route 10YellowTall grass / cave floor Raticate Yellow sprite Raticate 205.1%Encounter rate 15; no time-of-day split in Yellow.
Route 10YellowTall grass / cave floor Machop Yellow sprite Machop 16-185.5%Encounter rate 15; no time-of-day split in Yellow.
Route 10YellowOld Rod Magikarp Yellow sprite Magikarp 5100%Any fishable water tile.
Route 10YellowGood Rod Goldeen Yellow sprite Goldeen 1050%Any fishable water tile after getting Good Rod.
Route 10YellowGood Rod Poliwag Yellow sprite Poliwag 1050%Any fishable water tile after getting Good Rod.
Route 10YellowSuper Rod Krabby Yellow sprite Krabby 1525%Yellow Super Rod slot table.
Route 10YellowSuper Rod Krabby Yellow sprite Krabby 2025%Yellow Super Rod slot table.
Route 10YellowSuper Rod Horsea Yellow sprite Horsea 1025%Yellow Super Rod slot table.
Route 10YellowSuper Rod Kingler Yellow sprite Kingler 2525%Yellow Super Rod slot table.

Trainers

Route order Trainer Team Reward Optional / rematch note
1. Route 9 (13, 10)Jr. Trainer F trainer spriteJr. Trainer FParty #5
Oddish Yellow sprite Oddish Lv. 18 Bellsprout Yellow sprite Bellsprout Lv. 18 Oddish Yellow sprite Oddish Lv. 18 Bellsprout Yellow sprite Bellsprout Lv. 18
$360One-time trainer; no rematch in Yellow.
2. Route 9 (24, 7)Youngster trainer spriteYoungsterParty #14
Sandshrew Yellow sprite Sandshrew Lv. 24
$360One-time trainer; no rematch in Yellow.
3. Route 9 (31, 7)Jr. Trainer M trainer spriteJr. Trainer MParty #8
Rattata Yellow sprite Rattata Lv. 19 Diglett Yellow sprite Diglett Lv. 19 Ekans Yellow sprite Ekans Lv. 19 Sandshrew Yellow sprite Sandshrew Lv. 19
$380One-time trainer; no rematch in Yellow.
4. Route 9 (48, 8)Jr. Trainer F trainer spriteJr. Trainer FParty #6
Meowth Yellow sprite Meowth Lv. 23
$460One-time trainer; no rematch in Yellow.
5. Route 9 (16, 15)Hiker trainer spriteHikerParty #11
Machop Yellow sprite Machop Lv. 20 Onix Yellow sprite Onix Lv. 20
$700One-time trainer; no rematch in Yellow.
6. Route 9 (43, 3)Hiker trainer spriteHikerParty #6
Geodude Yellow sprite Geodude Lv. 20 Machop Yellow sprite Machop Lv. 20 Geodude Yellow sprite Geodude Lv. 20
$700One-time trainer; no rematch in Yellow.
7. Route 9 (22, 2)Bug Catcher trainer spriteBug CatcherParty #13
Beedrill Yellow sprite Beedrill Lv. 19 Beedrill Yellow sprite Beedrill Lv. 19
$190One-time trainer; no rematch in Yellow.
8. Route 9 (45, 15)Hiker trainer spriteHikerParty #5
Geodude Yellow sprite Geodude Lv. 21 Onix Yellow sprite Onix Lv. 21
$735One-time trainer; no rematch in Yellow.
9. Route 9 (40, 8)Bug Catcher trainer spriteBug CatcherParty #14
Caterpie Yellow sprite Caterpie Lv. 20 Weedle Yellow sprite Weedle Lv. 20 Venonat Yellow sprite Venonat Lv. 20
$200One-time trainer; no rematch in Yellow.
10. Route 10 (10, 44)Pokemaniac trainer spritePokemaniacParty #1
Rhyhorn Yellow sprite Rhyhorn Lv. 30 Lickitung Yellow sprite Lickitung Lv. 30
$1,500One-time trainer; no rematch in Yellow.
11. Route 10 (3, 57)Hiker trainer spriteHikerParty #7
Geodude Yellow sprite Geodude Lv. 21 Onix Yellow sprite Onix Lv. 21
$735One-time trainer; no rematch in Yellow.
12. Route 10 (14, 64)Pokemaniac trainer spritePokemaniacParty #2
Cubone Yellow sprite Cubone Lv. 20 Slowpoke Yellow sprite Slowpoke Lv. 20
$1,000One-time trainer; no rematch in Yellow.
13. Route 10 (7, 25)Jr. Trainer F trainer spriteJr. Trainer FParty #7
Jigglypuff Yellow sprite Jigglypuff Lv. 20 Clefairy Yellow sprite Clefairy Lv. 20
$400One-time trainer; no rematch in Yellow.
14. Route 10 (3, 61)Hiker trainer spriteHikerParty #8
Onix Yellow sprite Onix Lv. 19 Graveler Yellow sprite Graveler Lv. 19
$665One-time trainer; no rematch in Yellow.
15. Route 10 (7, 54)Jr. Trainer F trainer spriteJr. Trainer FParty #8
Pidgey Yellow sprite Pidgey Lv. 21 Pidgeotto Yellow sprite Pidgeotto Lv. 21
$420One-time trainer; no rematch in Yellow.

Items And Hidden Items

Item Type Area / direction Coordinate Requirement
TM30 TeleportVisible item ballVisible item ball at (10, 15) in Route 9.(10, 15)Reach this tile; HMs or story flags may be needed for late-game dungeons.
EtherHidden itemHidden on the searchable tile at (14, 7) in Route 9.(14, 7)Press A on the hidden tile or use the Itemfinder nearby.
Super PotionHidden itemHidden on the searchable tile at (9, 17) in Route 10.(9, 17)Press A on the hidden tile or use the Itemfinder nearby.
Max EtherHidden itemHidden on the searchable tile at (16, 53) in Route 10.(16, 53)Press A on the hidden tile or use the Itemfinder nearby.

Boss Strategy

No boss or Rival branch is attached to this section.

Completion Checklist

  • Clear Route 9 trainers.
  • Pick up hidden Route 9/10 items.
  • Heal at the Rock Tunnel Pokemon Center.
  • Verify the Yellow encounter rows before leaving if you are filling the Pokedex.
  • Use the item rows as a visible-item and hidden-item sweep before moving to the next section.

Sources

  • pret/pokeyellow: wild encounters, trainer parties, trainer money, map object events, hidden event items, rods, trades, and prize Pokemon.
  • Encounter odds aggregate the Gen I ten-slot rates: 51/256, 51/256, 39/256, 25/256, 25/256, 25/256, 13/256, 13/256, 11/256, and 3/256.
  • Yellow has no day/night encounter column; tables use Game, Method, and Condition instead.

Related articles

Pokemon Yellow Walkthrough HubPhase 4: Rainbow BadgePrevious: Route 2 Flash, Diglett's Cave, and Route 11Next: Rock Tunnel