Should You Grade Swampert #9 from Great Encounters?
Free PSA grading EV calculator pre-loaded with live market data for Swampert #9. Current PSA 10 gem rate is 32.7% based on 281 graded copies. PSA 10 sales average $2492.69 vs a raw market of $16.00. Expected value of grading: $679.14 (302% ROI). Verdict: Grade It.
Great Encounters · #9 · Rare Holo
Default-tier verdict
Grade It+$679 (+302% ROI)
Based on raw market $16.00, PSA 10 $2492.69, gem rate 32.7% (281 graded). Adjust inputs below for your card's exact condition.
About this calculator
This page computes the expected value (EV) of submitting Swampert #9 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 | 92 | 32.7% |
| PSA 9 | 90 | 32.0% |
| PSA 8 | 61 | 21.7% |
| PSA 7 | 17 | 6.0% |
