Is Michael Porter Jr. [Ball at Waist Autograph Playoff] #137 worth grading?
Basketball · Basketball Cards 2018 Panini Contenders · full price guide →
Worth grading — even a PSA 9 beats raw
A Grade 9.5 Michael Porter Jr. [Ball at Waist Autograph Playoff] #137 sells for $385 against $54.50 raw: a $331 spread, 7.1× the ungraded price. Even a PSA 9 ($350) 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)
- $54.50
- Grade 9.5
- $385
- PSA 9
- $350
- Gem premium
- 7.1×
- 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 — Grade 9.5 | $385 | +$306 | +$281 | +$181 |
| PSA 9 | $350 | +$271 | +$246 | +$146 |
| PSA 8 | $155 | +$75.50 | +$50.50 | −$49.50 |
Net = sale price − $54.50 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% | $359 | +$254 |
| 50% | $368 | +$263 |
| 75% | $376 | +$272 |
Even a miss (a 9) beats selling raw after the standard fee — the gem rate only decides how much you win by.
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Grading Michael Porter Jr. [Ball at Waist Autograph Playoff] #137 — FAQ
Is Michael Porter Jr. [Ball at Waist Autograph Playoff] #137 worth grading?
A Grade 9.5 Michael Porter Jr. [Ball at Waist Autograph Playoff] #137 sells for $385 against $54.50 raw: a $331 spread, 7.1× the ungraded price. Even a PSA 9 ($350) 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.
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