MidpointCard Centering Grading Portfolio App

Is Tim Duncan #C8 worth grading?

Basketball · Basketball Cards 1998 Finest Centurions · full price guide →

Worth grading — even a PSA 9 beats raw

A Grade 9.5 Tim Duncan #C8 sells for $138 against $38.00 raw: a $100 spread, 3.6× the ungraded price. Even a PSA 9 ($125) 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)
$38.00
Grade 9.5
$138
PSA 9
$125
Gem premium
3.6×
As of
Sep 4, 2026

Break-even by outcome and fee

Tim Duncan #C8: 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$138+$75.00+$50.00−$50.00
PSA 9$125+$62.00+$37.00−$63.00

Net = sale price − $38.00 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?

Tim Duncan #C8: expected value of submitting by gem probability
Chance it gemsExpected saleExpected net (standard fee)
25%$128+$40.25
50%$132+$43.50
75%$135+$46.75

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

Tim Duncan #C8 graded prices by company and grade
GradeGraded
9.5$138
9$125

Run your own numbers

Should I pay this?

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

Grading Tim Duncan #C8 — FAQ

Is Tim Duncan #C8 worth grading?

A Grade 9.5 Tim Duncan #C8 sells for $138 against $38.00 raw: a $100 spread, 3.6× the ungraded price. Even a PSA 9 ($125) 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 basketball 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