Professor's Research (Professor Oak)
Celebrations · #23/25 · Rare Holo · 2021
Price history
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Graded values
Grades 1–6 are estimates modeled from the raw price — PSA/CGC/BGS 7–10 and Ungraded are live tracked market values.
PSA 10 chart is building — graded values are tracked nightly, a new point appears each day.
Graded population census · updated 2026-07-11
Population data from PriceCharting, updated monthly.
How much is Professor's Research (Professor Oak) #23/25 worth?
As of August 15, 2026, Professor's Research (Professor Oak) #23/25 from Celebrations sells for around $0.30 in raw, ungraded condition.
Grading changes the math on this one: a PSA 10 is valued around $231.90, roughly 773.0x the raw price, while a PSA 9 sits near $11.30. 311 copies have been graded to date, and 18% of them came back a 10 — worth knowing before you pay grading fees.
These figures come from nightly market-data syncs verified against completed sales. Use the chart above to see the trend before you buy or sell.
