Professor's Research (Professor Oak)
At a glance
Released2021
PSA Population
Σ 306
PSA 10
54
18%
PSA 9
110
36%
PSA 8
126
41%
PSA ≤7
16
5%
PSA Population Report · as of 2026-06-24
Market price
No sales data yet
Frequently asked questions
How does lastsold determine the market value?
lastsold uses only real eBay sales — recent sales count more (recency weighting), outliers and fakes are removed. It's not an estimate but actual sold prices, separated by condition, language and grading.