Is Mariano Rivera [Real One] #91B2-20 worth grading?
Baseball · Baseball Cards 2026 Topps Series 2 1991 · full price guide →
Strong grading candidate — 7.2× premium in PSA 10
A PSA 10 Mariano Rivera [Real One] #91B2-20 sells for $84.48 against $11.75 raw: a $72.73 spread, 7.2× the ungraded price. A PSA 9 ($28.66) 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)
- $11.75
- PSA 10
- $84.48
- PSA 9
- $28.66
- Gem premium
- 7.2×
- 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 | $84.48 | +$47.73 | +$22.73 | −$77.27 |
| PSA 9 | $28.66 | −$8.09 | −$33.09 | −$133 |
| PSA 8 | $15.66 | −$21.09 | −$46.09 | −$146 |
Net = sale price − $11.75 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% | $42.62 | −$19.13 |
| 50% | $56.57 | −$5.18 |
| 75% | $70.53 | +$8.78 |
Break-even gem rate at the standard fee: about 59%. 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 | $110 | best | 55/45 | 70/30 |
| PSA 10 | $84.48 | −$25.52 | 55/45 | 75/25 |
| CGC 10 | $51.00 | −$59.00 | 55/45 | 75/25 |
| SGC 10 | $51.00 | −$59.00 | 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 Mariano Rivera [Real One] #91B2-20 — FAQ
Is Mariano Rivera [Real One] #91B2-20 worth grading?
A PSA 10 Mariano Rivera [Real One] #91B2-20 sells for $84.48 against $11.75 raw: a $72.73 spread, 7.2× the ungraded price. A PSA 9 ($28.66) 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 Mariano Rivera [Real One] #91B2-20 worth compared with raw?
A PSA 10 Mariano Rivera [Real One] #91B2-20 (Baseball Cards 2026 Topps Series 2 1991) sells for about $84.48 versus $11.75 for a raw near-mint copy — a 7.2× premium as of Sep 4, 2026.
Which grading company is best for Mariano Rivera [Real One] #91B2-20?
By resale value, BGS 10 leads at $110, ahead of PSA 10 at $84.48. Fees and turnaround differ, so the best-paying label is not always the best net.
What centering does Mariano Rivera [Real One] #91B2-20 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 Mariano Rivera [Real One] #91B2-20 break even?
At a standard ~$50 fee, submitting Mariano Rivera [Real One] #91B2-20 breaks even when it gems about 59% of the time (a miss assumed to sell at the PSA 9 price of $28.66).
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