MidpointCard Centering Grading Portfolio App
Roger Clemens [Refractor] #300 (Baseball Cards 1998 Topps Chrome) — is it worth grading?

Is Roger Clemens [Refractor] #300 worth grading?

Baseball · Baseball Cards 1998 Topps Chrome · full price guide →

Worth grading — even a PSA 9 beats raw

A Grade 9.5 Roger Clemens [Refractor] #300 sells for $55.00 against $23.37 raw: a $31.63 spread, 2.4× the ungraded price. Even a PSA 9 ($50.14) 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)
$23.37
Grade 9.5
$55.00
PSA 9
$50.14
Gem premium
2.4×
As of
Sep 4, 2026

Break-even by outcome and fee

Roger Clemens [Refractor] #300: 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$55.00+$6.63−$18.37−$118
PSA 9$50.14+$1.77−$23.23−$123
PSA 8$45.14−$3.23−$28.23−$128

Net = sale price − $23.37 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?

Roger Clemens [Refractor] #300: expected value of submitting by gem probability
Chance it gemsExpected saleExpected net (standard fee)
25%$51.36−$22.01
50%$52.57−$20.80
75%$53.78−$19.59

At the standard fee this submission does not break even at any realistic gem rate unless the miss lands above the 9 price.

Roger Clemens [Refractor] #300 graded prices by company and grade
GradeGraded
9.5$55.00
9$50.14
8$45.14
7$35.01

Run your own numbers

Should I pay this?

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

Other 1998 Topps Chrome cards worth checking

Full set checklist →

Grading Roger Clemens [Refractor] #300 — FAQ

Is Roger Clemens [Refractor] #300 worth grading?

A Grade 9.5 Roger Clemens [Refractor] #300 sells for $55.00 against $23.37 raw: a $31.63 spread, 2.4× the ungraded price. Even a PSA 9 ($50.14) 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 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