Midpoint - Card Centering Tool

Is Spider-Man #B13 worth grading?

Marvel · Marvel 2021 Upper Deck Annual Backscatters · full price guide →

Strong grading candidate — 187× premium in PSA 10

A PSA 10 Spider-Man #B13 sells for $610 against $3.27 raw: a $607 spread, 187× the ungraded price. A PSA 9 ($12.49) 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)
$3.27
PSA 10
$610
PSA 9
$12.49
Gem premium
187×
As of
Aug 15, 2026

Break-even by outcome and fee

Spider-Man #B13: 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$610+$582+$557+$457
PSA 9$12.49−$15.78−$40.78−$141

Net = sale price − $3.27 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?

Spider-Man #B13: expected value of submitting by gem probability
Chance it gemsExpected saleExpected net (standard fee)
25%$162+$109
50%$311+$258
75%$461+$407

Break-even gem rate at the standard fee: about 7%. 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
Spider-Man #B13: top-grade value by grading company with centering tolerance
Grader10 sells forvs bestFront centering for a 10Back
BGS 10$793best55/4570/30
PSA 10$610−$18355/4575/25
SGC 10$366−$42755/4575/25
CGC 10$31.00−$76255/4575/25

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.

Spider-Man #B13 graded prices by company and grade
GradePSACGCBGSSGCGraded
10$610$31.00$793$366
9.5$12.57
9$12.49

Run your own numbers

Should I pay this?

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

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Grading Spider-Man #B13 — FAQ

Is Spider-Man #B13 worth grading?

A PSA 10 Spider-Man #B13 sells for $610 against $3.27 raw: a $607 spread, 187× the ungraded price. A PSA 9 ($12.49) 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 Spider-Man #B13 worth compared with raw?

A PSA 10 Spider-Man #B13 (Marvel 2021 Upper Deck Annual Backscatters) sells for about $610 versus $3.27 for a raw near-mint copy — a 187× premium as of Aug 15, 2026.

Which grading company is best for Spider-Man #B13?

By resale value, BGS 10 leads at $793, ahead of PSA 10 at $610. Fees and turnaround differ, so the best-paying label is not always the best net.

What centering does Spider-Man #B13 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 Spider-Man #B13 break even?

At a standard ~$50 fee, submitting Spider-Man #B13 breaks even when it gems about 7% of the time (a miss assumed to sell at the PSA 9 price of $12.49).

Is your Marvel 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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