Expedition · 149/165
Professor Oak's Research
Most sell between $1.98 and $3
See these sales on eBay ↗eBay.com sold listings. eBay may ask you to sign in.
Find one under $1.98 and you beat 3 in 4 recent sales.
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Type the price you're looking at. We'll set it against what Professor Oak's Research really sold for, version by version.
Most pay $1.98 to $3Under $1.98 beats 3 in 4 sales; over $3, shop around.
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Listings and prices from eBay.com, in US dollars before shipping. A badge compares a listing's price with what that version sold for; auctions show their bids so far. eBay may pay us a commission when you buy.
Every version, one scale
Professor Oak's Research by version
Each printing and grade sells as its own thing, so each has its own price.
| Version | Price | Most sell for | Based on | On eBay |
|---|---|---|---|---|
| Raw, ungraded | $2.25 | $1.98 to $3 | solid · 29 sales | Shop raw copies on eBay ↗ |
| Played copy | $1.99 | $1.95 to $1.99 | good sample · 6 sales | Shop played copies on eBay ↗ |
| Reverse holo, raw | $14 | $10 to $24 | good sample · 7 sales | Shop Reverse holo on eBay ↗ |
| Reverse holo, played copy | ~$6.19 | too few sales | best guess · few sales | Shop played copies on eBay ↗ |
| Graded CGC 8 | ~$17 | too few sales | best guess · few sales | Shop CGC 8 on eBay ↗ |
| Graded Reverse holo CGC 10 | ~$250 | too few sales | best guess · few sales | Shop Reverse holo CGC 10 on eBay ↗ |
| Graded Reverse holo PSA 9 | ~$100 | too few sales | best guess · few sales | Shop Reverse holo PSA 9 on eBay ↗ |
| Graded Reverse holo CGC 8.5 | ~$36 | too few sales | best guess · few sales | Shop Reverse holo CGC 8.5 on eBay ↗ |
| Graded Reverse holo CGC 8 | ~$26 | too few sales | best guess · few sales | Shop Reverse holo CGC 8 on eBay ↗ |
Prices are the middle of recent eBay sold listings (eBay.com, US dollars), counted by pickthetcg. Left out: the 2021 Celebrations and 2026 30th Anniversary reprints that carry the same number, other languages, metal and custom cards, lots and sealed product. See these sales on eBay · How we price
Other price guides
What the free feeds say
They price from listings and sales on their own sites and often disagree, with eBay and with each other. Ours, $2.25 for raw, ungraded, is the middle of eBay sales, each printing and grade apart.
- TCGplayer market, Regular
- $2.27
- TCGplayer market, Reverse holo
- $35
- Cardmarket trend, one price for the card
- €1.06
TCGplayer as of 15 Oct 2026; Cardmarket as of 21 Nov 2025. Both via pokemontcg.io.
About the card
- Set
- Expedition
- Number
- 149/165
- Rarity
- Uncommon
- Type
- Trainer, Supporter
- Illustrator
- Ken Sugimori
- Released
- 15 September 2002
Card details from the open Pokémon TCG data behind pokemontcg.io.
Questions
How much is a Expedition Professor Oak's Research worth?
A raw Professor Oak's Research sells for about $2.25, with most sales between $1.98 and $3, from 29 recent eBay sales. Played copies are priced apart.
What set is Professor Oak's Research from?
Professor Oak's Research is card 149/165 in Expedition, released 15 September 2002: a uncommon illustrated by Ken Sugimori.
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