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Is Mike Penberthy #308 worth grading?

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Strong grading candidate — 42× premium in PSA 10

A PSA 10 Mike Penberthy #308 sells for $56.58 against $1.36 raw: a $55.22 spread, 42× the ungraded price. A PSA 9 ($14.86) 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)
$1.36
PSA 10
$56.58
PSA 9
$14.86
Gem premium
42×
As of
Sep 3, 2026

Break-even by outcome and fee

Mike Penberthy #308: 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$56.58+$30.22+$5.22−$94.78
PSA 9$14.86−$11.50−$36.50−$137
PSA 8$7.50−$18.86−$43.86−$144

Net = sale price − $1.36 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?

Mike Penberthy #308: expected value of submitting by gem probability
Chance it gemsExpected saleExpected net (standard fee)
25%$25.29−$26.07
50%$35.72−$15.64
75%$46.15−$5.21

Break-even gem rate at the standard fee: about 87%. 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 →
Mike Penberthy #308: top-grade value by grading company with centering tolerance
Grader10 sells forvs bestFront centering for a 10Back
BGS 10$74.00best55/4570/30
PSA 10$56.58−$17.4255/4575/25
CGC 10$34.00−$40.0055/4575/25
SGC 10$34.00−$40.0055/4575/25

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.

Mike Penberthy #308 graded prices by company and grade
GradePSACGCBGSSGCGraded
10$56.58$34.00$74.00$34.00—
9.5————$27.45
9————$14.86
8————$7.50

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Grading Mike Penberthy #308 — FAQ

Is Mike Penberthy #308 worth grading?

A PSA 10 Mike Penberthy #308 sells for $56.58 against $1.36 raw: a $55.22 spread, 42× the ungraded price. A PSA 9 ($14.86) 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 Mike Penberthy #308 worth compared with raw?

A PSA 10 Mike Penberthy #308 (Basketball Cards 2000 Upper Deck) sells for about $56.58 versus $1.36 for a raw near-mint copy — a 42× premium as of Sep 3, 2026.

Which grading company is best for Mike Penberthy #308?

By resale value, BGS 10 leads at $74.00, ahead of PSA 10 at $56.58. Fees and turnaround differ, so the best-paying label is not always the best net.

What centering does Mike Penberthy #308 need for a BGS 10?

BGS publishes 55/45 front and 70/30 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 Mike Penberthy #308 break even?

At a standard ~$50 fee, submitting Mike Penberthy #308 breaks even when it gems about 87% of the time (a miss assumed to sell at the PSA 9 price of $14.86).

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