Midpoint - Card Centering Tool
Brooks Robinson #300 (Baseball Cards 1971 Topps) — is it worth grading?

Is Brooks Robinson #300 worth grading?

Baseball · Baseball Cards 1971 Topps · full price guide →

Worth grading — even a PSA 9 beats raw

A PSA 10 Brooks Robinson #300 sells for $7,920 against $5.50 raw: a $7,915 spread, 1440× the ungraded price. Even a PSA 9 ($6,600) 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)
$5.50
PSA 10
$7,920
PSA 9
$6,600
Gem premium
1440×
As of
Jul 11, 2026

Break-even by outcome and fee

Brooks Robinson #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$7,920+$7,890+$7,865+$7,765
PSA 9$6,600+$6,570+$6,545+$6,445
PSA 8$1,036+$1,006+$981+$881

Net = sale price − $5.50 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?

Brooks Robinson #300: expected value of submitting by gem probability
Chance it gemsExpected saleExpected net (standard fee)
25%$6,930+$6,875
50%$7,260+$7,205
75%$7,590+$7,535

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
Brooks Robinson #300: top-grade value by grading company with centering tolerance
Grader10 sells forvs bestFront centering for a 10Back
BGS 10$10,296best55/4570/30
PSA 10$7,920−$2,37655/4575/25
CGC 10$4,752−$5,54455/4575/25
SGC 10$4,752−$5,54455/4575/25

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.

Brooks Robinson #300 graded prices by company and grade
GradePSACGCBGSSGCGraded
10$7,920$4,752$10,296$4,752
9.5$7,260
9$6,600
8$1,036
7$285

Run your own numbers

Should I pay this?

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

Other 1971 Topps cards worth checking

Full set checklist

Grading Brooks Robinson #300 — FAQ

Is Brooks Robinson #300 worth grading?

A PSA 10 Brooks Robinson #300 sells for $7,920 against $5.50 raw: a $7,915 spread, 1440× the ungraded price. Even a PSA 9 ($6,600) 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 Brooks Robinson #300 worth compared with raw?

A PSA 10 Brooks Robinson #300 (Baseball Cards 1971 Topps) sells for about $7,920 versus $5.50 for a raw near-mint copy — a 1440× premium as of Jul 11, 2026.

Which grading company is best for Brooks Robinson #300?

By resale value, BGS 10 leads at $10,296, ahead of PSA 10 at $7,920. Fees and turnaround differ, so the best-paying label is not always the best net.

What centering does Brooks Robinson #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