Midpoint - Card Centering Tool
Steve Carlton #300 (Baseball Cards 1973 O Pee Chee) — is it worth grading?

Is Steve Carlton #300 worth grading?

Baseball · Baseball Cards 1973 O Pee Chee · full price guide →

Worth grading — even a PSA 9 beats raw

A PSA 10 Steve Carlton #300 sells for $2,155 against $18.83 raw: a $2,136 spread, 114× the ungraded price. Even a PSA 9 ($432) 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)
$18.83
PSA 10
$2,155
PSA 9
$432
Gem premium
114×
As of
Jul 11, 2026

Break-even by outcome and fee

Steve Carlton #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 — PSA 10$2,155+$2,111+$2,086+$1,986
PSA 9$432+$388+$363+$263
PSA 8$60.30+$16.47−$8.53−$109

Net = sale price − $18.83 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?

Steve Carlton #300: expected value of submitting by gem probability
Chance it gemsExpected saleExpected net (standard fee)
25%$862+$794
50%$1,293+$1,225
75%$1,724+$1,655

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
Steve Carlton #300: top-grade value by grading company with centering tolerance
Grader10 sells forvs bestFront centering for a 10Back
BGS 10$2,802best55/4570/30
PSA 10$2,155−$64755/4575/25
CGC 10$1,293−$1,50955/4575/25
SGC 10$1,293−$1,50955/4575/25

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.

Steve Carlton #300 graded prices by company and grade
GradePSACGCBGSSGCGraded
10$2,155$1,293$2,802$1,293
9.5$594
9$432
8$60.30
7$45.29

Run your own numbers

Should I pay this?

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

Other 1973 O Pee Chee cards worth checking

Full set checklist

Grading Steve Carlton #300 — FAQ

Is Steve Carlton #300 worth grading?

A PSA 10 Steve Carlton #300 sells for $2,155 against $18.83 raw: a $2,136 spread, 114× the ungraded price. Even a PSA 9 ($432) 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 Steve Carlton #300 worth compared with raw?

A PSA 10 Steve Carlton #300 (Baseball Cards 1973 O Pee Chee) sells for about $2,155 versus $18.83 for a raw near-mint copy — a 114× premium as of Jul 11, 2026.

Which grading company is best for Steve Carlton #300?

By resale value, BGS 10 leads at $2,802, ahead of PSA 10 at $2,155. Fees and turnaround differ, so the best-paying label is not always the best net.

What centering does Steve Carlton #300 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.

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.

Check my card free