Is Mike Greenwell #339 worth grading?
Baseball · Baseball Cards 1988 Donruss · full price guide →
Strong grading candidate — 81× premium in PSA 10
A PSA 10 Mike Greenwell #339 sells for $80.65 against $0.99 raw: a $79.66 spread, 81× the ungraded price. A PSA 9 ($18.00) only about breaks even after fees, so the case rests on gemming. Centering is the usual reason a clean copy misses the 10 — measure it before you submit.
- Raw (NM)
- $0.99
- PSA 10
- $80.65
- PSA 9
- $18.00
- Gem premium
- 81×
- As of
- Sep 3, 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 | $80.65 | +$54.66 | +$29.66 | −$70.34 |
| PSA 9 | $18.00 | −$7.99 | −$32.99 | −$133 |
| PSA 8 | $8.53 | −$17.46 | −$42.46 | −$142 |
Net = sale price − $0.99 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% | $33.66 | −$17.33 |
| 50% | $49.33 | −$1.66 |
| 75% | $64.99 | +$14.00 |
Break-even gem rate at the standard fee: about 53%. Centering is the usual reason a clean copy misses — measure it before you decide.
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 | $105 | best | 55/45 | 70/30 |
| PSA 10 | $80.65 | −$24.35 | 55/45 | 75/25 |
| CGC 10 | $48.00 | −$57.00 | 55/45 | 75/25 |
| SGC 10 | $48.00 | −$57.00 | 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.
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Grading Mike Greenwell #339 — FAQ
Is Mike Greenwell #339 worth grading?
A PSA 10 Mike Greenwell #339 sells for $80.65 against $0.99 raw: a $79.66 spread, 81× the ungraded price. A PSA 9 ($18.00) only about breaks even after fees, so the case rests on gemming. Centering is the usual reason a clean copy misses the 10 — measure it before you submit.
How much is a PSA 10 Mike Greenwell #339 worth compared with raw?
A PSA 10 Mike Greenwell #339 (Baseball Cards 1988 Donruss) sells for about $80.65 versus $0.99 for a raw near-mint copy — a 81× premium as of Sep 3, 2026.
Which grading company is best for Mike Greenwell #339?
By resale value, BGS 10 leads at $105, ahead of PSA 10 at $80.65. Fees and turnaround differ, so the best-paying label is not always the best net.
What centering does Mike Greenwell #339 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.
What gem rate makes grading Mike Greenwell #339 break even?
At a standard ~$50 fee, submitting Mike Greenwell #339 breaks even when it gems about 53% of the time (a miss assumed to sell at the PSA 9 price of $18.00).
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