Midpoint - Card Centering Tool

Is Walter Johnson #9 worth grading?

Baseball · Baseball Cards 1991 Conlon Collection · full price guide →

Strong grading candidate — 62× premium in PSA 10

A PSA 10 Walter Johnson #9 sells for $99.60 against $1.61 raw: a $97.99 spread, 62× the ungraded price. A PSA 9 ($21.34) 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)
$1.61
PSA 10
$99.60
PSA 9
$21.34
Gem premium
62×
As of
Jul 11, 2026

Break-even by outcome and fee

Walter Johnson #9: 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$99.60+$72.99+$47.99−$52.01
PSA 9$21.34−$5.27−$30.27−$130
PSA 8$10.11−$16.50−$41.50−$142

Net = sale price − $1.61 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?

Walter Johnson #9: expected value of submitting by gem probability
Chance it gemsExpected saleExpected net (standard fee)
25%$40.91−$10.70
50%$60.47+$8.86
75%$80.03+$28.42

Break-even gem rate at the standard fee: about 39%. 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
Walter Johnson #9: top-grade value by grading company with centering tolerance
Grader10 sells forvs bestFront centering for a 10Back
BGS 10$129best55/4570/30
PSA 10$99.60−$29.4055/4575/25
CGC 10$60.00−$69.0055/4575/25
SGC 10$60.00−$69.0055/4575/25

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.

Walter Johnson #9 graded prices by company and grade
GradePSACGCBGSSGCGraded
10$99.60$60.00$129$60.00
9.5$38.77
9$21.34
8$10.11

Run your own numbers

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Other 1991 Conlon Collection cards worth checking

Full set checklist

Grading Walter Johnson #9 — FAQ

Is Walter Johnson #9 worth grading?

A PSA 10 Walter Johnson #9 sells for $99.60 against $1.61 raw: a $97.99 spread, 62× the ungraded price. A PSA 9 ($21.34) 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 Walter Johnson #9 worth compared with raw?

A PSA 10 Walter Johnson #9 (Baseball Cards 1991 Conlon Collection) sells for about $99.60 versus $1.61 for a raw near-mint copy — a 62× premium as of Jul 11, 2026.

Which grading company is best for Walter Johnson #9?

By resale value, BGS 10 leads at $129, ahead of PSA 10 at $99.60. Fees and turnaround differ, so the best-paying label is not always the best net.

What centering does Walter Johnson #9 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 Walter Johnson #9 break even?

At a standard ~$50 fee, submitting Walter Johnson #9 breaks even when it gems about 39% of the time (a miss assumed to sell at the PSA 9 price of $21.34).

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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