Midpoint - Card Centering Tool
Mark McGwire #36 (Baseball Cards 1990 Upper Deck) — is it worth grading?

Is Mark McGwire #36 worth grading?

Baseball · Baseball Cards 1990 Upper Deck · full price guide →

Worth grading only if it gems

A PSA 10 Mark McGwire #36 brings $28.53 versus $1.50 raw — a $27.03 spread that covers an economy-tier ~$25 grading fee. A PSA 9 ($15.09) only about breaks even after fees, so the case rests on gemming.

Raw (NM)
$1.50
PSA 10
$28.53
PSA 9
$15.09
Gem premium
19×
As of
Jul 11, 2026

Break-even by outcome and fee

Mark McGwire #36: 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$28.53+$2.03−$22.97−$123
PSA 9$15.09−$11.41−$36.41−$136
PSA 8$7.61−$18.89−$43.89−$144

Net = sale price − $1.50 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 #36: expected value of submitting by gem probability
Chance it gemsExpected saleExpected net (standard fee)
25%$18.45−$33.05
50%$21.81−$29.69
75%$25.17−$26.33

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 #36: top-grade value by grading company with centering tolerance
Grader10 sells forvs bestFront centering for a 10Back
BGS 10$37.00best55/4570/30
PSA 10$28.53−$8.4755/4575/25
CGC 10$17.00−$20.0055/4575/25
SGC 10$17.00−$20.0055/4575/25

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 #36 graded prices by company and grade
GradePSACGCBGSSGCGraded
10$28.53$17.00$37.00$17.00
9.5$28.00
9$15.09
8$7.61
7$4.39

Run your own numbers

Should I pay this?

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

Other 1990 Upper Deck cards worth checking

Full set checklist

Grading Mark McGwire #36 — FAQ

Is Mark McGwire #36 worth grading?

A PSA 10 Mark McGwire #36 brings $28.53 versus $1.50 raw — a $27.03 spread that covers an economy-tier ~$25 grading fee. A PSA 9 ($15.09) only about breaks even after fees, so the case rests on gemming.

How much is a PSA 10 Mark McGwire #36 worth compared with raw?

A PSA 10 Mark McGwire #36 (Baseball Cards 1990 Upper Deck) sells for about $28.53 versus $1.50 for a raw near-mint copy — a 19× premium as of Jul 11, 2026.

Which grading company is best for Mark McGwire #36?

By resale value, BGS 10 leads at $37.00, ahead of PSA 10 at $28.53. Fees and turnaround differ, so the best-paying label is not always the best net.

What centering does Mark McGwire #36 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.

Check my card free