Should You Grade Impostor Professor Oak #73 from Base?
Free PSA grading EV calculator pre-loaded with live market data for Impostor Professor Oak #73. Current PSA 10 gem rate is 21.0% based on 870 graded copies. PSA 10 sales average $3800.00 vs a raw market of $63.52. Expected value of grading: $385.11 (91% ROI). Verdict: Grade It.
Base · #73 · Rare
Default-tier verdict
Grade It+$385 (+91% ROI)
Based on raw market $63.52, PSA 10 $3800.00, gem rate 21.0% (870 graded). Adjust inputs below for your card's exact condition.
About this calculator
This page computes the expected value (EV) of submitting Impostor Professor Oak #73 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 | 183 | 21.0% |
| PSA 9 | 309 | 35.5% |
| PSA 8 | 179 | 20.6% |
| PSA 7 | 85 | 9.8% |
