Professor Oak's Research

Expedition Base Set · #149/165 · Uncommon · 2002

$2.22

Market price ▲ 0.0% (30d)

Prices as of Nov 5, 2026

Normal Reverse Holofoil

SupporterArt · Ken Sugimori

159graded pop

25%gem rate

119.4×PSA 10 vs raw

-55%off ATH $4.95 · Jan 2021

+$53.27EV to grade — worth it

Market data

Printings & price history

Normal▲ 0.0% 7d$2.22

Low $0.86Mid $1.99High $7.00

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Live listings

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Graded market

Graded values

PSA 10 report →updated 2026-11-04

Grade 6 est.$2.16

Grade 5 est.$1.82

Grade 4 est.$1.50

Grade 3 est.$1.25

Grade 2 est.$1.02

Grade 1 est.$0.86

Grades 1–6 are estimates modeled from the raw price — PSA/CGC/BGS 7–10 and Ungraded are live tracked market values.

PSA 10 price history$265.00

PSA 10 chart is building — graded values are tracked nightly, a new point appears each day.

Graded population census · updated 2026-09-17

CGC98 graded · 21 gem 10

12345678910

PSA61 graded · 18 gem 10

12345678910

Population data from PriceCharting, updated monthly.

Auction sale integrity

New

Graded sales for this card from public auctions, each checked for shill/relist patterns and prices that don’t match the market. How this works →

Clean price · CGC 10

$86.40

Low confidence — a single sale, not yet corroborated

Recent sale price by grade · tracked by cert number

CGC 10

$72.00

last $72.00 · Sep 7, 2026 · 1 sale

Unconfirmed

CGC 10 · 7 bids · Sep 7, 2026

$72.00

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How much is Professor Oak's Research #149/165 worth?

Right now (November 5, 2026) the going rate for an ungraded Professor Oak's Research #149/165 from Expedition Base Set is about $2.22. Across the 2 printings we track, copies run anywhere from $0.86 to $379.68 depending on the version you're holding.

Grading changes the math on this one: a PSA 10 is valued around $265.00, roughly 119.4x the raw price, while a PSA 9 sits near $20.53. 98 copies have been graded to date, and 21% of them came back a 10 — worth knowing before you pay grading fees.

Prices on this page refresh nightly from live TCGplayer market data and are cross-checked against actual sold prices, so a single inflated listing never becomes "the price". The chart above has the full history.

Collecting Expedition Base Set?Full master set guide — every card, chase list, and completion cost→