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Mark McGwire #5 (Baseball Cards 1988 Score) — is it worth grading?

Is Mark McGwire #5 worth grading?

Baseball · Baseball Cards 1988 Score · full price guide →

Worth grading only if it gems

A PSA 10 Mark McGwire #5 brings $39.36 versus $1.63 raw — a $37.73 spread that covers an economy-tier ~$25 grading fee. A PSA 9 ($11.99) only about breaks even after fees, so the case rests on gemming.

Raw (NM)
$1.63
PSA 10
$39.36
PSA 9
$11.99
Gem premium
24×
As of
Jul 11, 2026

Break-even by outcome and fee

Mark McGwire #5: 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$39.36+$12.73−$12.27−$112
PSA 9$11.99−$14.64−$39.64−$140
PSA 8$4.38−$22.25−$47.25−$147

Net = sale price − $1.63 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 #5: expected value of submitting by gem probability
Chance it gemsExpected saleExpected net (standard fee)
25%$18.83−$32.80
50%$25.68−$25.95
75%$32.52−$19.11

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 #5: top-grade value by grading company with centering tolerance
Grader10 sells forvs bestFront centering for a 10Back
BGS 10$51.00best55/4570/30
PSA 10$39.36−$11.6455/4575/25
CGC 10$24.00−$27.0055/4575/25
SGC 10$24.00−$27.0055/4575/25

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 #5 graded prices by company and grade
GradePSACGCBGSSGCGraded
10$39.36$24.00$51.00$24.00
9.5$19.99
9$11.99
8$4.38
7$4.00

Run your own numbers

Should I pay this?

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

Other 1988 Score cards worth checking

Full set checklist

Grading Mark McGwire #5 — FAQ

Is Mark McGwire #5 worth grading?

A PSA 10 Mark McGwire #5 brings $39.36 versus $1.63 raw — a $37.73 spread that covers an economy-tier ~$25 grading fee. A PSA 9 ($11.99) only about breaks even after fees, so the case rests on gemming.

How much is a PSA 10 Mark McGwire #5 worth compared with raw?

A PSA 10 Mark McGwire #5 (Baseball Cards 1988 Score) sells for about $39.36 versus $1.63 for a raw near-mint copy — a 24× premium as of Jul 11, 2026.

Which grading company is best for Mark McGwire #5?

By resale value, BGS 10 leads at $51.00, ahead of PSA 10 at $39.36. Fees and turnaround differ, so the best-paying label is not always the best net.

What centering does Mark McGwire #5 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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