Vintage
Rocket's Secret Experiment
Gym Challenge · #120 · English · released 2000
Raw market price
$4.14
30 days
▼ 4.5%
90 days
▼ 2.8%
47MASTER score · steady
Graded prices & PSA population
| Grade | Market price | PSA population |
|---|---|---|
| PSA 9 | $20 | 8 |
| PSA 8 | $8 | 5 |
PSA population recorded 2026-09-05 · total graded 20
Why this card matters
pop
Estimated.
Graded comps on record
$20
PSA 9
$12
CGC 10
$8
PSA 8
Track Rocket's Secret Experiment in the app.
Daily recorded prices, PSA pop history, price alerts and 7,300+ more cards to discover — free on the App Store now.
More from Gym Challenge
Market data recorded 2026-08-02 from licensed market sources. MASTER records prices daily and never invents a number — estimated values are always labeled. Not financial advice.