MASTER
Rocket's Secret Experiment — Gym Challenge #120 Pokémon card

Vintage

Rocket's Secret Experiment

Gym Challenge · #120 · English · released 2000

Raw market price

$4.42

30 days

▼ 0.9%

90 days

▲ 1.8%

47MASTER score · steady

Graded prices & PSA population

GradeMarket pricePSA population
PSA 8$254

PSA population recorded 2026-07-20 · total graded 19

Why this card matters

pop

Estimated.

Graded comps on record

$25

PSA 8

$20

PSA 9

$12

CGC 10

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Market data recorded 2026-07-10 from licensed market sources. MASTER records prices daily and never invents a number — estimated values are always labeled. Not financial advice.