Is Mark McGwire #51 worth grading?
Baseball · Baseball Cards 2000 SP Authentic · full price guide →
Worth grading — even a PSA 9 beats raw
A PSA 10 Mark McGwire #51 sells for $34.00 against $1.79 raw: a $32.21 spread, 19× the ungraded price. Even a PSA 9 ($28.00) 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)
- $1.79
- PSA 10
- $34.00
- PSA 9
- $28.00
- Gem premium
- 19×
- As of
- Jul 11, 2026
Break-even by outcome and fee
| If it comes back… | Sells for | Economy / bulk (~$25.00) | Standard (~$50.00) | Express (~$150) |
|---|---|---|---|---|
| Gem — PSA 10 | $34.00 | +$7.21 | −$17.79 | −$118 |
| PSA 9 | $28.00 | +$1.21 | −$23.79 | −$124 |
Net = sale price − $1.79 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% | $29.50 | −$22.29 |
| 50% | $31.00 | −$20.79 |
| 75% | $32.50 | −$19.29 |
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 |
|---|---|---|---|---|
| BGS 10 | $44.00 | best | 55/45 | 70/30 |
| PSA 10 | $34.00 | −$10.00 | 55/45 | 75/25 |
| CGC 10 | $20.00 | −$24.00 | 55/45 | 75/25 |
| SGC 10 | $20.00 | −$24.00 | 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.
Full grade ladder
Raw conditions & history →| Grade | PSA | CGC | BGS | SGC | Graded |
|---|---|---|---|---|---|
| 10 | $34.00 | $20.00 | $44.00 | $20.00 | — |
| 9.5 | — | — | — | — | $31.00 |
| 9 | — | — | — | — | $28.00 |
Run your own numbers
Should I pay this?
Enter the seller’s asking price to see your net outcome per grade.
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Grading Mark McGwire #51 — FAQ
Is Mark McGwire #51 worth grading?
A PSA 10 Mark McGwire #51 sells for $34.00 against $1.79 raw: a $32.21 spread, 19× the ungraded price. Even a PSA 9 ($28.00) 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.
How much is a PSA 10 Mark McGwire #51 worth compared with raw?
A PSA 10 Mark McGwire #51 (Baseball Cards 2000 SP Authentic) sells for about $34.00 versus $1.79 for a raw near-mint copy — a 19× premium as of Jul 11, 2026.
Which grading company is best for Mark McGwire #51?
By resale value, BGS 10 leads at $44.00, ahead of PSA 10 at $34.00. Fees and turnaround differ, so the best-paying label is not always the best net.
What centering does Mark McGwire #51 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.
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