
Is Ron Guidry #135 worth grading?
Baseball · Baseball Cards 1978 Topps · full price guide →
Worth grading — even a PSA 9 beats raw
A PSA 10 Ron Guidry #135 sells for $219 against $2.19 raw: a $216 spread, 100× the ungraded price. Even a PSA 9 ($31.27) 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)
- $2.19
- PSA 10
- $219
- PSA 9
- $31.27
- Gem premium
- 100×
- 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 | $219 | +$191 | +$166 | +$66.34 |
| PSA 9 | $31.27 | +$4.08 | −$20.92 | −$121 |
| PSA 8 | $18.80 | −$8.39 | −$33.39 | −$133 |
Net = sale price − $2.19 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% | $78.09 | +$25.90 |
| 50% | $125 | +$72.71 |
| 75% | $172 | +$120 |
Break-even gem rate at the standard fee: about 11%. 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 | $284 | best | 55/45 | 70/30 |
| PSA 10 | $219 | −$65.47 | 55/45 | 75/25 |
| CGC 10 | $131 | −$153 | 55/45 | 75/25 |
| SGC 10 | $131 | −$153 | 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 | $219 | $131 | $284 | $131 | — |
| 9.5 | — | — | — | — | $68.61 |
| 9 | — | — | — | — | $31.27 |
| 8 | — | — | — | — | $18.80 |
| 7 | — | — | — | — | $14.99 |
Run your own numbers
Should I pay this?
Enter the seller’s asking price to see your net outcome per grade.
Other 1978 Topps cards worth checking
Full set checklist →Grading Ron Guidry #135 — FAQ
Is Ron Guidry #135 worth grading?
A PSA 10 Ron Guidry #135 sells for $219 against $2.19 raw: a $216 spread, 100× the ungraded price. Even a PSA 9 ($31.27) 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 Ron Guidry #135 worth compared with raw?
A PSA 10 Ron Guidry #135 (Baseball Cards 1978 Topps) sells for about $219 versus $2.19 for a raw near-mint copy — a 100× premium as of Jul 11, 2026.
Which grading company is best for Ron Guidry #135?
By resale value, BGS 10 leads at $284, ahead of PSA 10 at $219. Fees and turnaround differ, so the best-paying label is not always the best net.
What centering does Ron Guidry #135 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 Ron Guidry #135 break even?
At a standard ~$50 fee, submitting Ron Guidry #135 breaks even when it gems about 11% of the time (a miss assumed to sell at the PSA 9 price of $31.27).
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.
Check my card free


