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Mark McGwire #20 (Baseball Cards 1992 Score) — is it worth grading?

Is Mark McGwire #20 worth grading?

Baseball · Baseball Cards 1992 Score · full price guide →

Grading rarely pays for this card

PSA 10 copies of Mark McGwire #20 sell for $20.62, only $18.94 above the $1.68 raw price — less than an economy-tier grading fee. A PSA 9 ($9.50) only about breaks even after fees, so the case rests on gemming. Keep it raw unless you are grading for the slab itself.

Raw (NM)
$1.68
PSA 10
$20.62
PSA 9
$9.50
Gem premium
12×
As of
Jul 11, 2026

Break-even by outcome and fee

Mark McGwire #20: 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$20.62−$6.06−$31.06−$131
PSA 9$9.50−$17.18−$42.18−$142
PSA 8$9.04−$17.64−$42.64−$143

Net = sale price − $1.68 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?

Mark McGwire #20: expected value of submitting by gem probability
Chance it gemsExpected saleExpected net (standard fee)
25%$12.28−$39.40
50%$15.06−$36.62
75%$17.84−$33.84

At the standard fee this submission does not break even at any realistic gem rate unless the miss lands above the 9 price.

Which grader pays the most — and what a 10 takes

All centering standards
Mark McGwire #20: top-grade value by grading company with centering tolerance
Grader10 sells forvs bestFront centering for a 10Back
BGS 10$27.00best55/4570/30
PSA 10$20.62−$6.3855/4575/25
CGC 10$12.00−$15.0055/4575/25
SGC 10$12.00−$15.0055/4575/25

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.

Mark McGwire #20 graded prices by company and grade
GradePSACGCBGSSGCGraded
10$20.62$12.00$27.00$12.00
9.5$20.00
9$9.50
8$9.04

Run your own numbers

Should I pay this?

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

Other 1992 Score cards worth checking

Full set checklist

Grading Mark McGwire #20 — FAQ

Is Mark McGwire #20 worth grading?

PSA 10 copies of Mark McGwire #20 sell for $20.62, only $18.94 above the $1.68 raw price — less than an economy-tier grading fee. A PSA 9 ($9.50) only about breaks even after fees, so the case rests on gemming. Keep it raw unless you are grading for the slab itself.

How much is a PSA 10 Mark McGwire #20 worth compared with raw?

A PSA 10 Mark McGwire #20 (Baseball Cards 1992 Score) sells for about $20.62 versus $1.68 for a raw near-mint copy — a 12× premium as of Jul 11, 2026.

Which grading company is best for Mark McGwire #20?

By resale value, BGS 10 leads at $27.00, ahead of PSA 10 at $20.62. Fees and turnaround differ, so the best-paying label is not always the best net.

What centering does Mark McGwire #20 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.

Is your baseball 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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