MidpointCard Centering Grading Portfolio App
Dennis Maruk #141 (Hockey Cards 1978 O-Pee-Chee) — is it worth grading?

Is Dennis Maruk #141 worth grading?

Hockey · Hockey Cards 1978 O-Pee-Chee · full price guide →

Worth grading — even a PSA 9 beats raw

A Grade 9.5 Dennis Maruk #141 sells for $91.00 against $1.18 raw: a $89.82 spread, 77× the ungraded price. Even a PSA 9 ($83.00) 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)
$1.18
Grade 9.5
$91.00
PSA 9
$83.00
Gem premium
77×
As of
Sep 4, 2026

Break-even by outcome and fee

Dennis Maruk #141: 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 — Grade 9.5$91.00+$64.82+$39.82−$60.18
PSA 9$83.00+$56.82+$31.82−$68.18
PSA 8$75.75+$49.57+$24.57−$75.43

Net = sale price − $1.18 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?

Dennis Maruk #141: expected value of submitting by gem probability
Chance it gemsExpected saleExpected net (standard fee)
25%$85.00+$33.82
50%$87.00+$35.82
75%$89.00+$37.82

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

Dennis Maruk #141 graded prices by company and grade
GradeGraded
9.5$91.00
9$83.00
8$75.75

Run your own numbers

Should I pay this?

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

Other 1978 O-Pee-Chee cards worth checking

Full set checklist →

Grading Dennis Maruk #141 — FAQ

Is Dennis Maruk #141 worth grading?

A Grade 9.5 Dennis Maruk #141 sells for $91.00 against $1.18 raw: a $89.82 spread, 77× the ungraded price. Even a PSA 9 ($83.00) 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.

Best on iPhone & Android

Check your hockey 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