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Rocket's Secret Experiment
Gym Challenge · #120
$22.39latest TCGplayer median
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Price history (TCGplayer median, ~180 days)
About Rocket's Secret Experiment #120's market value
Rocket's Secret Experiment #120 (1st Edition, Uncommon) from Gym Challenge (2000) has a market price of $22.39 raw as of August 30, 2026, the TCGplayer market price for this exact printing. It sits well above the set's median card ($6.00), ranking #66 of 263 priced printings. Over the last 30 days the price has surged (+131.8%). Its 180-day range is $9.66 to $22.39 — it is trading near the top of that range.
Graded copies of Rocket's Secret Experiment sell for more than raw. PSA 9 copies go for around $70.00, about 3.1× the raw price (4 recent sales) — thin data, treat as indicative. Other grades we track: CGC 8.5 at $29.99, PSA 6 at $14.00, CGC 10 at $11.50. Graded medians come from recent eBay sold listings and refresh daily.
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