Should You Grade Slowpoke & Psyduck-GX #239 from Unified Minds?
Free PSA grading EV calculator pre-loaded with live market data for Slowpoke & Psyduck-GX #239. Current PSA 10 gem rate is 37.3% based on 980 graded copies. PSA 10 sales average $1250.00 vs a raw market of $198.25. Expected value of grading: $316.48 (110% ROI). Verdict: Grade It.
Unified Minds · #239 · Rare Rainbow
Default-tier verdict
Grade It+$316 (+110% ROI)
Based on raw market $198.25, PSA 10 $1250.00, gem rate 37.3% (980 graded). Adjust inputs below for your card's exact condition.
About this calculator
This page computes the expected value (EV) of submitting Slowpoke & Psyduck-GX #239 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 | 366 | 37.3% |
| PSA 9 | 431 | 44.0% |
| PSA 8 | 145 | 14.8% |
| PSA 7 | 20 | 2.0% |
