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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 →

Worth grading — even a PSA 9 beats raw

A PSA 10 Rocket's Secret Experiment sells for $146 against $9.89 raw: a $137 spread, 15× the ungraded price. Even a PSA 9 ($47.87) clears the raw price after an economy-tier ~$25 fee, so a near-miss still comes out ahead. Centering is the usual reason a clean copy misses the 10 — measure it before you submit.

Raw (NM)
$9.89
PSA 10
$146
PSA 9
$47.87
Gem premium
15×
As of
Aug 18, 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$146+$112+$86.51−$13.49
PSA 9$47.87+$12.98−$12.02−$112
PSA 8$10.12−$24.77−$49.77−$150

Net = sale price − $9.89 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%$72.50+$12.61
50%$97.14+$37.25
75%$122+$61.88

Break-even gem rate at the standard fee: about 12%. 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$146best55/4575/25
CGC 10$11.50−$13555/4575/25

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$146$11.50
9$20.00
8.5$29.99
8$24.99
7$6.00
6$11.41

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 $146 against $9.89 raw: a $137 spread, 15× the ungraded price. Even a PSA 9 ($47.87) clears the raw price after an economy-tier ~$25 fee, so a near-miss still comes out ahead. 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 $146 versus $9.89 for a raw near-mint copy — a 15× premium as of Aug 18, 2026.

Which grading company is best for Rocket's Secret Experiment?

By resale value, PSA 10 leads at $146, ahead of CGC 10 at $11.50. Fees and turnaround differ, so the best-paying label is not always the best net.

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 12% of the time (a miss assumed to sell at the PSA 9 price of $47.87).

Is your Pokémon card centered well enough to grade?

Centering makes or breaks a PSA 10. Scan any card with Midpoint to measure its exact centering, get a grade estimate, and see what your copy is actually worth.

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