Should You Grade Koga #19 from Gym Challenge?
Free PSA grading EV calculator pre-loaded with live market data for Koga #19. Current PSA 10 gem rate is 4.6% based on 1,086 graded copies. PSA 10 sales average $550.12 vs a raw market of $31.80. Expected value of grading: $-5.91 (-6% ROI). Verdict: Sell raw.
Gym Challenge · #19 · Rare Holo
Default-tier verdict
Sell raw$-6 (-6% ROI)
Based on raw market $31.80, PSA 10 $550.12, gem rate 4.6% (1,086 graded). Adjust inputs below for your card's exact condition.
About this calculator
This page computes the expected value (EV) of submitting Koga #19 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 | 50 | 4.6% |
| PSA 9 | 307 | 28.3% |
| PSA 8 | 369 | 34.0% |
| PSA 7 | 183 | 16.9% |
