Rocket's Secret Experiment Gym Challenge #120
Rocket's Secret Experiment is a Uncommon Pokémon card from Gym Challenge (#120), illustrated by Ken Sugimori. It's a Trainer card. Its current blended market value is $9.66 ungraded, with a PSA 10 worth around $92 — a gem-mint grading premium of roughly 9× the raw value. Prices are aggregated across marketplaces — raw and graded, updated daily and shown in your local currency.
Prices last updated 2 July 2026.
Price by variant
TCGplayer market price per printing — reverse holo, 1st edition and unlimited often differ sharply.
| Grade | Relative value | Price |
|---|---|---|
| PSA 10 | $92$83–$300 | |
| PSA 9 | $47$26–$70 | |
| PSA 8 | $9$9–$13 | |
| PSA 7 | $6$6–$6 |
Price history · raw near-mint
Recent sold prices
Real completed sale prices from Fanatics Collect — weekly and premier auctions plus marketplace Buy It Now sales, refreshed periodically. Grade read from the listing title.
Population across graders
Should you grade it?
after ~$70.91 grading fee → 9.5× the raw value
| Target grade | Est. value | Grading fee | Net vs raw | Multiple |
|---|---|---|---|---|
| PSA 10 | $91.65 | $70.91 | +$11 | 9.5× |
| PSA 9 | $47.21 | $70.46 | −$33 | 4.9× |
| PSA 8 | $9.02 | $70.08 | −$71 | 0.9× |
⚖️ Risk-adjusted return
Best case isn't the whole story. Weighting every grade by how often it actually happens, across 139 PSA-graded copies:
| Likely outcome | Chance | Value |
|---|---|---|
| PSA 10 | 18% | $92.00 |
| PSA 9 | 43.2% | $47.00 |
| PSA ≤8 | 38.8% | $10.00 |
Net = graded value − raw value − grading cost (tier fee + ~$20 round-trip shipping), using PSA fees as of 2026-06-28; the paused PSA Value tier is excluded so this isn't overstated. Gem rate is estimated from cumulative PSA population, which skews toward nicer, resubmitted copies — so it overstates the true grade rate. Treat it as a guide, not a guarantee.
We'll email you when this card's value crosses your target.
Where to buy
Cross-market prices
38% spreadCurrently 38% cheaper on PriceCharting than TCGplayer. These are independent market prices for the same card — a wide gap can mean a buying opportunity. Informational only, not arbitrage advice.
Market signal
Derived from this card's 90-day price history, recent trend and cross-market price gap. Informational, not advice.
🇪🇺 Cardmarket price · Europe
13% cheaper than the USCard text
Flip a coin. If heads, search your deck for any card and put it into your hand. Shuffle your deck afterward. If tails, you can't play Trainer cards until the end of your next turn.
Card details
More from Gym Challenge
Frequently asked questions
How much is Rocket's Secret Experiment (Gym Challenge #120) worth?
As of 2 July 2026, Rocket's Secret Experiment from Gym Challenge is worth approximately $9.66 ungraded (near-mint), and around $92 in PSA 10 gem mint. Values are blended from real Cardmarket, eBay sold and TCGplayer prices and update daily.
What is the PSA 10 price for Rocket's Secret Experiment?
A PSA 10 (gem mint) Rocket's Secret Experiment from Gym Challenge is worth around $92 — roughly 9× the raw ungraded value of $9.66.
Should I grade my Rocket's Secret Experiment?
A PSA 10 sells for about $92 versus $9.66 raw — roughly a 9× uplift. Grading is worth it when that premium comfortably beats the grading fee and the card is clean enough to have a real shot at a 10. See the "Should you grade it?" estimate above for net profit per grade.
Is Rocket's Secret Experiment rare?
Rocket's Secret Experiment is a Uncommon card from Gym Challenge (card #120), illustrated by Ken Sugimori. Its current blended market value is $9.66 ungraded.