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Grade Matrix

Graded
PSA 6
$8
Grade 7 guide
$5
Grade 8 guide
$13
PSA 9
$16
PSA 10
$265

PSA 10: PriceCharting · last PSA 10 sale $274.99 on Jul 19, 2026 · checked Oct 27, 2026

PSA 9: Median of 1 PSA 9 sale in the last 90 days, latest 2026-10-23. Grade 9 guide (all graders): $21.

Grade 7 and Grade 8 are PriceCharting guides across all graders (PSA, CGC, BGS, SGC, TAG).

CGC
CGC 8
-
CGC 9
-
CGC 10
$42
CGC P10
-

Availability

Availabilityi
2/10G: —
Graded: insufficient data · Sales per year: ~144 sales/yr · Recent sales: 2 PSA 10 comps · Raw recent sales: 60 · Grade 9 recent sales: 9 · PSA 10 recent sales: 5 · Graded copies: 71

TCGplayer Price History

NormalProduct 88402Fetched Oct 26, 3:38 AM
Weekly market
$2.22
week ending Oct 19
Weekly avg sale
$1.21
week ending Oct 19
Units sold (week)
3
week ending Oct 19

Card Value FAQ

How much is Professor Oak's Research (Expedition #149) worth?

GemDelta shows Professor Oak's Research (Expedition #149) at $2.22 market price (TCGplayer market). Its Delta multiple is 119x.

How much is a PSA 10 Professor Oak's Research (Expedition #149) worth?

A PSA 10 Professor Oak's Research (Expedition #149) is currently shown at $265. GemDelta labels this as a PriceCharting guide fallback rather than verified recent sales.

Is Professor Oak's Research (Expedition #149) worth grading?

GemDelta records a 26.8% gem rate for Professor Oak's Research (Expedition #149), with 19 PSA 10 copies out of 71 total PSA grades and a 119x Delta. That describes the grading profile; it is not financial advice.

PSA 10 Recent sales

DateListingSale
Jul 19, 2026PSA 10 Professor Oak's Research Trainer 149/165 Expedition Pokemon 2002 149/165$274.99
Jul 18, 20262002 POKEMON EXPEDITION #149 PROFESSOR OAK'S RESEARCH PSA 10 #149$265.00