PSA Grading Calculator
Expected value of submitting one raw card to PSA, using observed PSA 10 and PSA 9 market prices. You set the gem rate — we don't have population data for One Piece Card Game, so any figure we picked for you would be a guess wearing a decimal point.
Roronoa Zoro OP09-076
Graded pricing data from PriceCharting.
Expected value across gem rates
EV rises monotonically with the gem rate, so these three points bound the answer. We don't know which is right for this card.
- 5% gem rate
- +$973.13
- after $25.00 fee and $1.40 cost
- 15% gem rate · yours
- +$2,969
- after $25.00 fee and $1.40 cost
- 22% gem rate
- +$3,353
- after $25.00 fee and $1.40 cost
Breakdown at your 15% gem rate
| Outcome | Probability | Value | Contribution |
|---|---|---|---|
| PSA 10 | 19.5% | $5,760 | $1,123 |
| PSA 9 | 39.0% | $4,800 | $1,872 |
| PSA 8 | 29.3% | $1.40(raw — no observed price) | $0.41 |
| PSA 7 or lower | 12.2% | $1.40(raw — no observed price) | $0.17 |
| Gross | $2,996 | ||
| Less PSA fee and card cost | −$26.40 | ||
| Expected value | +$2,969 |
PSA 8 and/or PSA 7 have no observed price for this card, so the raw price stands in for them. A slab is worth at least the unslabbed card, which makes this figure a floor rather than a midpoint.
What this figure assumes
- Gem rate 15% — our placeholder, not a measurement
- Condition good (×1.3), giving an effective 19.5%
- Distribution P(10)=g, P(9)=2g, P(8)=1.5g, P(<8)=1−4.5g · PSA only · model psa-only-v1
- Prices from our 6 Aug 2026 PriceCharting snapshot
This page's URL encodes every input, so the same link always reproduces the same number — even after our default gem rate changes.
Pricing data from PriceCharting.
Estimates only, not financial advice. Grading outcomes depend on centring, edges, surface and print quality that no price feed can see. We have no PSA population data for One Piece Card Game, so the gem rate is yours to set — check the PSA population report for your specific card before submitting.