Gym Heroes est la première série de cartes Gym. Elle met en valeur les Pokémon des champions Pierre (Brock), Ondine (Misty), Major Bob (Lt. Surge) et Erika. A noter que cette extension n'a jamais été commercialisée en français.

Numéro de la carte	Nom	Rareté
001/132	Blaine's Moltres	Holo
002/132	Brock's Rhydon	Holo
003/132	Erika's Clefable	Holo
004/132	Erika's Dragonair	Holo
005/132	Erika's Vileplume	Holo
006/132	Lt. Surge's Electabuzz	Holo
007/132	Lt. Surge's Fearow	Holo
008/132	Lt. Surge's Magneton	Holo
009/132	Misty's Seadra	Holo
010/132	Misty's Tentacruel	Holo
011/132	Rocket's Hitmonchan	Holo
012/132	Rocket's Moltres	Holo
013/132	Rocket's Scyther	Holo
014/132	Sabrina's Gengar	Holo
015/132	Brock	Holo
016/132	Erika	Holo
017/132	Lt. Surge	Holo
018/132	Misty	Holo
019/132	The Rocket's Trap	Holo
020/132	Brock's Golem	Rare
021/132	Brock's Onix	Rare
022/132	Brock's Rhyhorn	Rare
023/132	Brock's Sandslash	Rare
024/132	Brock's Zubat	Rare
025/132	Erika's Clefairy	Rare
026/132	Erika's Victreebell	Rare
027/132	Lt. Surge's Electabuzz	Rare
028/132	Lt. Surge's Raichu	Rare
029/132	Misty's Cloyster	Rare
030/132	Misty's Goldeen	Rare
031/132	Misty's Poliwrath	Rare
032/132	Misty's Tentacool	Rare
033/132	Rocket's Snorlax	Rare
034/132	Sabrina's Venomoth	Rare
035/132	Blaine's Growlithe	Unco
036/132	Blaine's Kangaskhan	Unco
037/132	Blaine's Magmar	Unco
038/132	Brock's Geodude	Unco
039/132	Brock's Golbat	Unco
040/132	Brock's Graveler	Unco
041/132	Brock's Lickitung	Unco
042/132	Erika's Dratini	Unco
043/132	Erika's Exeggcute	Unco
044/132	Erika's Exeggutor	Unco
045/132	Erika's Gloom	Unco
046/132	Erika's Gloom	Unco
047/132	Erika's Oddish	Unco
048/132	Erika's Weepinbell	Unco
049/132	Erika's Weepinbell	Unco
050/132	Lt. Surge's Magnemite	Unco
051/132	Lt. Surge's Raticate	Unco
052/132	Lt. Surge's Spearow	Unco
053/132	Misty's Poliwhirl	Unco
054/132	Misty's Psyduck	Unco
055/132	Misty's Seaking	Unco
056/132	Misty's Starmie	Unco
057/132	Misty's Tentacool	Unco
058/132	Sabrina's Haunter	Unco
059/132	Sabrina's Jynx	Unco
060/132	Sabrina's Slowbro	Unco
061/132	Blaine's Charmander	Commune
062/132	Blaine's Growlithe	Commune
063/132	Blaine's Ponyta	Commune
064/132	Blaine's Tauros	Commune
065/132	Blaine's Vulpix	Commune
066/132	Brock's Geodude	Commune
067/132	Brock's Mankey	Commune
068/132	Brock's Mankey	Commune
069/132	Brock's Onix	Commune
070/132	Brock's Rhyhorn	Commune
071/132	Brock's Sandshrew	Commune
072/132	Brock's Sandshrew	Commune
073/132	Brock's Vulpix	Commune
074/132	Brock's Zubat	Commune
075/132	Erika's Bellsprout	Commune
076/132	Erika's Bellsprout	Commune
077/132	Erika's Exeggcute	Commune
078/132	Erika's Oddish	Commune
079/132	Erika's Tangela	Commune
080/132	Lt. Surge's Magnemite	Commune
081/132	Lt. Surge's Pikachu	Commune
082/132	Lt. Surge's Rattata	Commune
083/132	Lt. Surge's Spearow	Commune
084/132	Lt. Surge's Voltorb	Commune
085/132	Misty's Goldeen	Commune
086/132	Misty's Horsea	Commune
087/132	Misty's Poliwag	Commune
088/132	Misty's Seel	Commune
089/132	Misty's Shellder	Commune
090/132	Misty's Staryu	Commune
091/132	Sabrina's Abra	Commune
092/132	Sabrina's Drowzee	Commune
093/132	Sabrina's Gastly	Commune
094/132	Sabrina's Mr. Mime	Commune
095/132	Sabrina's Slowpoke	Commune
096/132	Sabrina's Venonat	Commune
097/132	Blaine's Quiz #1	Rare
098/132	Brock	Rare
099/132	Charity	Rare
100/132	Erika	Rare
101/132	Lt. Surge	Rare
102/132	Misty	Rare
103/132	No Removal Gym	Rare
104/132	The Rocket's Training Gym	Rare
105/132	Blaine's Last Resort	Unco
106/132	Brock's Training Method	Unco
107/132	Cerulean City Gym	Unco
108/132	Cerulean City Gym	Unco
109/132	Erika's Maids	Unco
110/132	Erika's Perfume	Unco
111/132	Good Manners	Unco
112/132	Lt. Surge's Treaty	Unco
113/132	Minion of Team Rocket	Unco
114/132	Misty's Wrath	Unco
115/132	Pewter City Gym	Unco
116/132	Recall	Unco
117/132	Sabrina's ESP	Unco
118/132	Secret Mission	Unco
119/132	Tickling Machine	Unco
120/132	Vermillion City Gym	Unco
121/132	Blaine's Gamble	Commune
122/132	Energy Flow	Commune
123/132	Misty's Duel	Commune
124/132	Narrow Gym	Commune
125/132	Sabrina's Gaze	Commune
126/132	Trash Exchange	Commune
127/132	Fighting Energy	Commune
128/132	Fire Energy	Commune
129/132	Grass Energy	Commune
130/132	Lightning Energy	Commune
131/132	Psychic Energy	Commune
132/132	Water Energy	Commune

Le logo de l'extension :

Le symbole de la série :