Meet the conditions below to unlock the named medals.

Medal	How to unlock
Ace Trainer (Bronze)	Train 10 times at a friendly Gym
Ace Trainer (Gold)	Train 1,000 times at a friendly Gym
Ace Trainer (Silver)	Train 100 times at a friendly Gym
Backpacker (Bronze)	Visit 100 PokeStops
Backpacker (Gold)	Visit 2,000 PokeStops
Backpacker (Silver)	Visit 1,000 PokeStops
Battle Girl (Bronze)	Win 10 Gym Battles
Battle Girl (Gold)	Win 1,000 Gym Battles
Battle Girl (Silver)	Win 100 Gym Battles
Bird Keeper (Bronze)	Catch 10 Flying Pokemon
Bird Keeper (Gold)	Catch 200 Flying Pokemon
Bird Keeper (Silver)	Catch 50 Flying Pokemon
Black Belt (Bronze)	Catch 10 Fighting Pokemon
Black Belt (Gold)	Catch 200 Fighting Pokemon
Black Belt (Silver)	Catch 50 Fighting Pokemon
Breeder (Bronze)	Hatch 10 Eggs
Breeder (Gold)	Hatch 500 Eggs
Breeder (Silver)	Hatch 100 Eggs
Bug Catcher (Bronze)	Catch 10 Bug Pokemon
Bug Catcher (Gold)	Catch 200 Bug Pokemon
Bug Catcher (Silver)	Catch 50 Bug Pokemon
Collector (Bronze)	Catch 30 Pokemon
Collector (Gold)	Catch 2,000 Pokemon
Collector (Silver)	Catch 500 Pokemon
Delinquent (Bronze)	Catch 10 Dark Pokemon
Delinquent (Gold)	Catch 200 Dark Pokemon
Delinquent (Silver)	Catch 50 Dark Pokemon
Depot Agent (Bronze)	Catch 10 Steel Pokemon
Depot Agent (Gold)	Catch 200 Steel Pokemon
Depot Agent (Silver)	Catch 50 Steel Pokemon
Dragon Tamer (Bronze)	Catch 10 Dragon Pokemon
Dragon Tamer (Gold)	Catch 200 Dragon Pokemon
Dragon Tamer (Silver)	Catch 50 Dragon Pokemon
Fairy Tale Girl (Bronze)	Catch 10 Fairy Pokemon
Fairy Tale Girl (Gold)	Catch 200 Fairy Pokemon
Fairy Tale Girl (Silver)	Catch 50 Fairy Pokemon
Fisherman (Bronze)	Catch 3 big Magikarp
Fisherman (Gold)	Catch 300 big Magikarp
Fisherman (Silver)	Catch 50 big Magikarp
Gardener (Bronze)	Catch 10 Grass Pokemon
Gardener (Gold)	Catch 200 Grass Pokemon
Gardener (Silver)	Catch 50 Grass Pokemon
Hex Maniac (Bronze)	Catch 10 Ghost Pokemon
Hex Maniac (Gold)	Catch 200 Ghost Pokemon
Hex Maniac (Silver)	Catch 50 Ghost Pokemon
Hiker (Bronze)	Catch 10 Rock Pokemon
Hiker (Gold)	Catch 200 Rock Pokemon
Hiker (Silver)	Catch 50 Rock Pokemon
Jogger (Bronze)	Walk 10 km
Jogger (Gold)	Walk 1,000 km
Jogger (Silver)	Walk 100 km
Johto (Bronze)	Register 5 Johto Pokemon
Johto (Gold)	Register 70 Johto Pokemon
Johto (Silver)	Register 30 Johto Pokemon
Kanto (Bronze)	Register 5 Pokemon
Kanto (Gold)	Register 100 Pokemon
Kanto (Silver)	Register 50 Pokemon
Kindler (Bronze)	Catch 10 Fire Pokemon
Kindler (Gold)	Catch 200 Fire Pokemon
Kindler (Silver)	Catch 50 Fire Pokemon
Pikachu Fan (Bronze)	Catch 3 Pikachu
Pikachu Fan (Gold)	Catch 300 Pikachu
Pikachu Fan (Silver)	Catch 50 Pikachu
Pokémon Ranger (Bronze)	Complete 10 Field Research Tasks
Pokémon Ranger (Gold)	Complete 1000 Field Research Tasks
Pokémon Ranger (Silver)	Complete 100 Field Research Tasks
Psychic (Bronze)	Catch 10 Psychic Pokemon
Psychic (Gold)	Catch 200 Psychic Pokemon
Psychic (Silver)	Catch 50 Psychic Pokemon
Punk Girl (Bronze)	Catch 10 Poison Pokemon
Punk Girl (Gold)	Catch 200 Poison Pokemon
Punk Girl (Silver)	Catch 50 Poison Pokemon
Rocker (Bronze)	Catch 10 Electric Pokemon
Rocker (Gold)	Catch 200 Electric Pokemon
Rocker (Silver)	Catch 50 Electric Pokemon
Ruin Maniac (Bronze)	Catch 10 Ground Pokemon
Ruin Maniac (Gold)	Catch 200 Ground Pokemon
Ruin Maniac (Silver)	Catch 50 Ground Pokemon
Schoolkid (Bronze)	Catch 10 Normal Pokemon
Schoolkid (Gold)	Catch 200 Normal Pokemon
Schoolkid (Silver)	Catch 50 Normal Pokemon
Scientist (Bronze)	Evolve 3 Pokemon
Scientist (Gold)	Evolve 200 Pokemon
Scientist (Silver)	Evolve 20 Pokemon
Skier (Bronze)	Catch 10 Ice Pokemon
Skier (Gold)	Catch 200 Ice Pokemon
Skier (Silver)	Catch 50 Ice Pokemon
Swimmer (Bronze)	Catch 10 Water Pokemon
Swimmer (Gold)	Catch 200 Water Pokemon
Swimmer (Silver)	Catch 50 Water Pokemon
Youngster (Bronze)	Catch 3 tiny Rattata
Youngster (Gold)	Catch 300 tiny Rattata
Youngster (Silver)	Catch 50 tiny Rattata