Is Bob Gibson worth grading?
Baseball · Baseball Cards 1994 Nabisco All Star Legends Autographs · full price guide →
Worth grading — even a PSA 9 beats raw
A Grade 9.5 Bob Gibson sells for $55.00 against $19.99 raw: a $35.01 spread, 2.8× the ungraded price. Even a PSA 9 ($50.00) 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)
- $19.99
- Grade 9.5
- $55.00
- PSA 9
- $50.00
- Gem premium
- 2.8×
- As of
- Sep 4, 2026
Break-even by outcome and fee
| If it comes back… | Sells for | Economy / bulk (~$25.00) | Standard (~$50.00) | Express (~$150) |
|---|---|---|---|---|
| Gem — Grade 9.5 | $55.00 | +$10.01 | −$14.99 | −$115 |
| PSA 9 | $50.00 | +$5.01 | −$19.99 | −$120 |
Net = sale price − $19.99 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?
| Chance it gems | Expected sale | Expected net (standard fee) |
|---|---|---|
| 25% | $51.25 | −$18.74 |
| 50% | $52.50 | −$17.49 |
| 75% | $53.75 | −$16.24 |
At the standard fee this submission does not break even at any realistic gem rate unless the miss lands above the 9 price.
Which grader pays the most — and what a 10 takes
All centering standards →| Grader | 10 sells for | vs best | Front centering for a 10 | Back |
|---|---|---|---|---|
| SGC 10 | $51.00 | best | 55/45 | 75/25 |
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.
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Raw conditions & history →Run your own numbers
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Full set checklist →Grading Bob Gibson — FAQ
Is Bob Gibson worth grading?
A Grade 9.5 Bob Gibson sells for $55.00 against $19.99 raw: a $35.01 spread, 2.8× the ungraded price. Even a PSA 9 ($50.00) 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.
What centering does Bob Gibson need for a SGC 10?
SGC publishes 55/45 front and 75/25 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.
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