Should You Grade Dark Blastoise #20 from Team Rocket?
Free PSA grading EV calculator pre-loaded with live market data for Dark Blastoise #20. Current PSA 10 gem rate is 6.0% based on 2,761 graded copies. PSA 10 sales average $600.00 vs a raw market of $27.56. Expected value of grading: $-18.88 (-19% ROI). Verdict: Sell raw.
Team Rocket · #20 · Rare
Default-tier verdict
Sell raw$-19 (-19% ROI)
Based on raw market $27.56, PSA 10 $600.00, gem rate 6.0% (2,761 graded). Adjust inputs below for your card's exact condition.
About this calculator
This page computes the expected value (EV) of submitting Dark Blastoise #20 to PSA for grading. EV factors in real PSA population data (gem rates), live market prices for raw and graded copies, and PSA's tiered fee structure including upcharges when a card's graded value exceeds the tier's Max Insured Value. Adjust the inputs to match your card's exact condition for a personalized recommendation.
PSA population summary
| Grade | Population | Rate |
|---|---|---|
| PSA 10 | 167 | 6.0% |
| PSA 9 | 715 | 25.9% |
| PSA 8 | 680 | 24.6% |
| PSA 7 | 405 | 14.7% |
