Should You Grade Tyranitar #66 from Expedition Base Set?
Free PSA grading EV calculator pre-loaded with live market data for Tyranitar #66. Current PSA 10 gem rate is 25.8% based on 469 graded copies. PSA 10 sales average $987.00 vs a raw market of $40.10. Expected value of grading: $258.51 (235% ROI). Verdict: Grade It.
Expedition Base Set · #66 · Rare
Default-tier verdict
Grade It+$259 (+235% ROI)
Based on raw market $40.10, PSA 10 $987.00, gem rate 25.8% (469 graded). Adjust inputs below for your card's exact condition.
About this calculator
This page computes the expected value (EV) of submitting Tyranitar #66 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 | 121 | 25.8% |
| PSA 9 | 186 | 39.7% |
| PSA 8 | 81 | 17.3% |
| PSA 7 | 30 | 6.4% |
