Should You Grade Brock's Sandslash #23 from Gym Heroes?
Free PSA grading EV calculator pre-loaded with live market data for Brock's Sandslash #23. Current PSA 10 gem rate is 15.6% based on 90 graded copies. PSA 10 sales average $84.65 vs a raw market of $10.00. Expected value of grading: $-49.22 (-62% ROI). Verdict: Sell raw.
Gym Heroes · #23 · Rare
Default-tier verdict
Sell raw$-49 (-62% ROI)
Based on raw market $10.00, PSA 10 $84.65, gem rate 15.6% (90 graded). Adjust inputs below for your card's exact condition.
About this calculator
This page computes the expected value (EV) of submitting Brock's Sandslash #23 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 | 14 | 15.6% |
| PSA 9 | 35 | 38.9% |
| PSA 8 | 26 | 28.9% |
| PSA 7 | 4 | 4.4% |
