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Rocket's Secret Experiment (Gym Challenge 120/132) — is it worth grading?

Is Rocket's Secret Experiment worth grading?

Pokémon · Gym Challenge · 120/132 · full price guide →

Strong grading candidate — 240× premium in PSA 10

A PSA 10 Rocket's Secret Experiment sells for $5,600 against $23.29 raw: a $5,577 spread, 240× the ungraded price. A PSA 9 ($48.02) only about breaks even after fees, so the case rests on gemming. Centering is the usual reason a clean copy misses the 10 — measure it before you submit.

Raw (NM)
$23.29
PSA 10
$5,600
PSA 9
$48.02
Gem premium
240×
As of
Oct 3, 2026

Break-even by outcome and fee

Rocket's Secret Experiment: net result of grading versus selling raw, by outcome and fee tier
If it comes back…Sells forEconomy / bulk (~$25.00)Standard (~$50.00)Express (~$150)
Gem — PSA 10$5,600+$5,552+$5,527+$5,427
PSA 9$48.02−$0.27−$25.27−$125
PSA 8$29.00−$19.29−$44.29−$144

Net = sale price − $23.29 raw value − fee. Fee tiers are illustrative; plug your grader's current price into the calculator below.

Expected value — how often does it need to gem?

Rocket's Secret Experiment: expected value of submitting by gem probability
Chance it gemsExpected saleExpected net (standard fee)
25%$1,436+$1,363
50%$2,824+$2,751
75%$4,212+$4,139

Break-even gem rate at the standard fee: about 0%. Centering is the usual reason a clean copy misses — measure it before you decide.

Which grader pays the most — and what a 10 takes

All centering standards →
Rocket's Secret Experiment: top-grade value by grading company with centering tolerance
Grader10 sells forvs bestFront centering for a 10Back
PSA 10$5,600best55/4575/25

Tolerances are each company's published centering standard for its top grade; surface, corners and edges must also be clean. Centering is the one you can measure yourself before you pay.

Rocket's Secret Experiment graded prices by company and grade
GradePSACGC
10$5,600$11.50
9$20.00—
8.5—$29.99
8$7.50—
7$6.00—
6$45.99—

Run your own numbers

Should I pay this?

Enter the seller’s asking price to see your net outcome per grade.

Other Gym Challenge cards worth checking

Full set checklist →

Grading Rocket's Secret Experiment — FAQ

Is Rocket's Secret Experiment worth grading?

A PSA 10 Rocket's Secret Experiment sells for $5,600 against $23.29 raw: a $5,577 spread, 240× the ungraded price. A PSA 9 ($48.02) only about breaks even after fees, so the case rests on gemming. Centering is the usual reason a clean copy misses the 10 — measure it before you submit.

How much is a PSA 10 Rocket's Secret Experiment worth compared with raw?

A PSA 10 Rocket's Secret Experiment (Gym Challenge 120/132) sells for about $5,600 versus $23.29 for a raw near-mint copy — a 240× premium as of Oct 3, 2026.

What centering does Rocket's Secret Experiment need for a PSA 10?

PSA publishes 55/45 front and 75/25 back centering as the tolerance for a 10 (Gem Mint). Off-center copies are capped below the top grade regardless of surface — measure yours before paying the fee.

What gem rate makes grading Rocket's Secret Experiment break even?

At a standard ~$50 fee, submitting Rocket's Secret Experiment breaks even when it gems about 0% of the time (a miss assumed to sell at the PSA 9 price of $48.02).

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