Midpoint - Card Centering Tool

Is John Block #64 worth grading?

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Worth grading — even a PSA 9 beats raw

A PSA 10 John Block #64 sells for $281 against $1.27 raw: a $280 spread, 221× the ungraded price. Even a PSA 9 ($26.99) clears the raw price after an economy-tier ~$25 fee, so a near-miss still comes out ahead. Centering is the usual reason a clean copy misses the 10 — measure it before you submit.

Raw (NM)
$1.27
PSA 10
$281
PSA 9
$26.99
Gem premium
221×
As of
Jul 11, 2026

Break-even by outcome and fee

John Block #64: 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$281+$255+$230+$130
PSA 9$26.99+$0.72−$24.28−$124
PSA 8$13.20−$13.07−$38.07−$138

Net = sale price − $1.27 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?

John Block #64: expected value of submitting by gem probability
Chance it gemsExpected saleExpected net (standard fee)
25%$90.52+$39.25
50%$154+$103
75%$218+$166

Break-even gem rate at the standard fee: about 10%. 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
John Block #64: top-grade value by grading company with centering tolerance
Grader10 sells forvs bestFront centering for a 10Back
BGS 10$365best55/4570/30
PSA 10$281−$83.8855/4575/25
CGC 10$169−$19655/4575/25
SGC 10$169−$19655/4575/25

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.

John Block #64 graded prices by company and grade
GradePSACGCBGSSGCGraded
10$281$169$365$169
9.5$56.12
9$26.99
8$13.20

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 John Block #64 — FAQ

Is John Block #64 worth grading?

A PSA 10 John Block #64 sells for $281 against $1.27 raw: a $280 spread, 221× the ungraded price. Even a PSA 9 ($26.99) clears the raw price after an economy-tier ~$25 fee, so a near-miss still comes out ahead. Centering is the usual reason a clean copy misses the 10 — measure it before you submit.

How much is a PSA 10 John Block #64 worth compared with raw?

A PSA 10 John Block #64 (Basketball Cards 1975 Topps) sells for about $281 versus $1.27 for a raw near-mint copy — a 221× premium as of Jul 11, 2026.

Which grading company is best for John Block #64?

By resale value, BGS 10 leads at $365, ahead of PSA 10 at $281. Fees and turnaround differ, so the best-paying label is not always the best net.

What centering does John Block #64 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 John Block #64 break even?

At a standard ~$50 fee, submitting John Block #64 breaks even when it gems about 10% of the time (a miss assumed to sell at the PSA 9 price of $26.99).

Is your basketball 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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