Is Kobbie Mainoo #S-18 worth grading?
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Strong grading candidate — 4.5× premium in PSA 10
A PSA 10 Kobbie Mainoo #S-18 sells for $581 against $130 raw: a $451 spread, 4.5× the ungraded price. A PSA 9 ($133) 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)
- $130
- PSA 10
- $581
- PSA 9
- $133
- Gem premium
- 4.5×
- 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 — PSA 10 | $581 | +$426 | +$401 | +$301 |
| PSA 9 | $133 | −$22.00 | −$47.00 | −$147 |
| PSA 8 | $121 | −$34.40 | −$59.40 | −$159 |
Net = sale price − $130 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% | $245 | +$65.00 |
| 50% | $357 | +$177 |
| 75% | $469 | +$289 |
Break-even gem rate at the standard fee: about 10%. 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 | $755 | best | 55/45 | 70/30 |
| PSA 10 | $581 | −$174 | 55/45 | 75/25 |
| CGC 10 | $349 | −$406 | 55/45 | 75/25 |
| SGC 10 | $349 | −$406 | 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 Kobbie Mainoo #S-18 — FAQ
Is Kobbie Mainoo #S-18 worth grading?
A PSA 10 Kobbie Mainoo #S-18 sells for $581 against $130 raw: a $451 spread, 4.5× the ungraded price. A PSA 9 ($133) 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 Kobbie Mainoo #S-18 worth compared with raw?
A PSA 10 Kobbie Mainoo #S-18 (Soccer Cards 2024 Topps Merlin UEFA The Shiny) sells for about $581 versus $130 for a raw near-mint copy — a 4.5× premium as of Sep 4, 2026.
Which grading company is best for Kobbie Mainoo #S-18?
By resale value, BGS 10 leads at $755, ahead of PSA 10 at $581. Fees and turnaround differ, so the best-paying label is not always the best net.
What centering does Kobbie Mainoo #S-18 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 Kobbie Mainoo #S-18 break even?
At a standard ~$50 fee, submitting Kobbie Mainoo #S-18 breaks even when it gems about 10% of the time (a miss assumed to sell at the PSA 9 price of $133).
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