![World Series Game 2 [Mantle Slams 2 Homers] #307 (Baseball Cards 1961 Topps) — is it worth grading?](https://i.ebayimg.com/images/g/ZAgAAeSwFjJqUWrM/s-l1600.jpg)
Is World Series Game 2 [Mantle Slams 2 Homers] #307 worth grading?
Baseball · Baseball Cards 1961 Topps · full price guide →
Worth grading — even a PSA 9 beats raw
A PSA 10 World Series Game 2 [Mantle Slams 2 Homers] #307 sells for $8,165 against $45.11 raw: a $8,120 spread, 181× the ungraded price. Even a PSA 9 ($6,392) 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)
- $45.11
- PSA 10
- $8,165
- PSA 9
- $6,392
- Gem premium
- 181×
- 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 | $8,165 | +$8,095 | +$8,070 | +$7,970 |
| PSA 9 | $6,392 | +$6,322 | +$6,297 | +$6,197 |
| PSA 8 | $358 | +$288 | +$263 | +$163 |
Net = sale price − $45.11 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% | $6,835 | +$6,740 |
| 50% | $7,278 | +$7,183 |
| 75% | $7,722 | +$7,627 |
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 →| Grader | 10 sells for | vs best | Front centering for a 10 | Back |
|---|---|---|---|---|
| BGS 10 | $10,615 | best | 55/45 | 70/30 |
| PSA 10 | $8,165 | −$2,450 | 55/45 | 75/25 |
| CGC 10 | $4,899 | −$5,716 | 55/45 | 75/25 |
| SGC 10 | $4,899 | −$5,716 | 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 | $8,165 | $4,899 | $10,615 | $4,899 | — |
| 9.5 | — | — | — | — | $7,031 |
| 9 | — | — | — | — | $6,392 |
| 8 | — | — | — | — | $358 |
| 7 | — | — | — | — | $219 |
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 World Series Game 2 [Mantle Slams 2 Homers] #307 — FAQ
Is World Series Game 2 [Mantle Slams 2 Homers] #307 worth grading?
A PSA 10 World Series Game 2 [Mantle Slams 2 Homers] #307 sells for $8,165 against $45.11 raw: a $8,120 spread, 181× the ungraded price. Even a PSA 9 ($6,392) 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 World Series Game 2 [Mantle Slams 2 Homers] #307 worth compared with raw?
A PSA 10 World Series Game 2 [Mantle Slams 2 Homers] #307 (Baseball Cards 1961 Topps) sells for about $8,165 versus $45.11 for a raw near-mint copy — a 181× premium as of Jul 11, 2026.
Which grading company is best for World Series Game 2 [Mantle Slams 2 Homers] #307?
By resale value, BGS 10 leads at $10,615, ahead of PSA 10 at $8,165. Fees and turnaround differ, so the best-paying label is not always the best net.
What centering does World Series Game 2 [Mantle Slams 2 Homers] #307 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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