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Don Mattingly #658 (Baseball Cards 1988 Score Glossy) — is it worth grading?

Is Don Mattingly #658 worth grading?

Baseball · Baseball Cards 1988 Score Glossy · full price guide →

Worth grading only if it gems

A PSA 10 Don Mattingly #658 brings $41.00 versus $7.00 raw — a $34.00 spread that covers an economy-tier ~$25 grading fee. A PSA 9 ($14.99) only about breaks even after fees, so the case rests on gemming.

Raw (NM)
$7.00
PSA 10
$41.00
PSA 9
$14.99
Gem premium
5.9×
As of
Jul 11, 2026

Break-even by outcome and fee

Don Mattingly #658: 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$41.00+$9.00−$16.00−$116
PSA 9$14.99−$17.01−$42.01−$142

Net = sale price − $7.00 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?

Don Mattingly #658: expected value of submitting by gem probability
Chance it gemsExpected saleExpected net (standard fee)
25%$21.49−$35.51
50%$28.00−$29.00
75%$34.50−$22.50

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
Don Mattingly #658: top-grade value by grading company with centering tolerance
Grader10 sells forvs bestFront centering for a 10Back
BGS 10$53.00best55/4570/30
PSA 10$41.00−$12.0055/4575/25
SGC 10$30.00−$23.0055/4575/25
CGC 10$25.00−$28.0055/4575/25

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.

Don Mattingly #658 graded prices by company and grade
GradePSACGCBGSSGCGraded
10$41.00$25.00$53.00$30.00
9.5$16.00
9$14.99

Run your own numbers

Should I pay this?

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

Other 1988 Score Glossy cards worth checking

Full set checklist

Grading Don Mattingly #658 — FAQ

Is Don Mattingly #658 worth grading?

A PSA 10 Don Mattingly #658 brings $41.00 versus $7.00 raw — a $34.00 spread that covers an economy-tier ~$25 grading fee. A PSA 9 ($14.99) only about breaks even after fees, so the case rests on gemming.

How much is a PSA 10 Don Mattingly #658 worth compared with raw?

A PSA 10 Don Mattingly #658 (Baseball Cards 1988 Score Glossy) sells for about $41.00 versus $7.00 for a raw near-mint copy — a 5.9× premium as of Jul 11, 2026.

Which grading company is best for Don Mattingly #658?

By resale value, BGS 10 leads at $53.00, ahead of PSA 10 at $41.00. Fees and turnaround differ, so the best-paying label is not always the best net.

What centering does Don Mattingly #658 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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