MidpointCard Centering Grading Portfolio App
Muddy Ruel #18 (Baseball Cards 1933 Goudey) — is it worth grading?

Is Muddy Ruel #18 worth grading?

Baseball · Baseball Cards 1933 Goudey · full price guide →

Worth grading — even a PSA 9 beats raw

A PSA 10 Muddy Ruel #18 sells for $10,552 against $27.00 raw: a $10,525 spread, 391× the ungraded price. Even a PSA 9 ($1,575) 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)
$27.00
PSA 10
$10,552
PSA 9
$1,575
Gem premium
391×
As of
Sep 3, 2026

Break-even by outcome and fee

Muddy Ruel #18: 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$10,552+$10,500+$10,475+$10,375
PSA 9$1,575+$1,523+$1,498+$1,398
PSA 8$589+$537+$512+$412

Net = sale price − $27.00 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?

Muddy Ruel #18: expected value of submitting by gem probability
Chance it gemsExpected saleExpected net (standard fee)
25%$3,819+$3,742
50%$6,064+$5,987
75%$8,308+$8,231

Even a miss (a 9) beats selling raw after the standard fee — the gem rate only decides how much you win by.

Which grader pays the most — and what a 10 takes

All centering standards →
Muddy Ruel #18: top-grade value by grading company with centering tolerance
Grader10 sells forvs bestFront centering for a 10Back
BGS 10$13,718best55/4570/30
PSA 10$10,552−$3,16655/4575/25
CGC 10$6,331−$7,38755/4575/25
SGC 10$6,331−$7,38755/4575/25

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.

Muddy Ruel #18 graded prices by company and grade
GradePSACGCBGSSGCGraded
10$10,552$6,331$13,718$6,331—
9.5————$2,924
9————$1,575
8————$589
7————$471

Swipe the table for the other grading companies →

Run your own numbers

Should I pay this?

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

Other 1933 Goudey cards worth checking

Full set checklist →

Grading Muddy Ruel #18 — FAQ

Is Muddy Ruel #18 worth grading?

A PSA 10 Muddy Ruel #18 sells for $10,552 against $27.00 raw: a $10,525 spread, 391× the ungraded price. Even a PSA 9 ($1,575) 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 Muddy Ruel #18 worth compared with raw?

A PSA 10 Muddy Ruel #18 (Baseball Cards 1933 Goudey) sells for about $10,552 versus $27.00 for a raw near-mint copy — a 391× premium as of Sep 3, 2026.

Which grading company is best for Muddy Ruel #18?

By resale value, BGS 10 leads at $13,718, ahead of PSA 10 at $10,552. Fees and turnaround differ, so the best-paying label is not always the best net.

What centering does Muddy Ruel #18 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.

Best on iPhone & Android

Check your baseball card in the Midpoint app

Scan with your camera to measure centering to the millimeter, get an AI grade with corner and edge close-ups, see what your copy is worth, and track it in your portfolio. Free to start.

Download on the App StoreGet it on Google Play

Or try it on the web →

Best on iPhone & Android

The full Midpoint experience is in the app

Scan with your camera, get AI grades with corner and edge close-ups, issue Grade Certificates, set price alerts, track your portfolio and talk to other collectors — everything here, plus the parts a browser can't do. Free to start.

Download on the App StoreGet it on Google Play