Grade Matrix
PSA
PSA 6
-
PSA 7
$5
PSA 8
$13
PSA 9
$31
PSA 10
$56
PSA 10: PriceCharting; refreshed Sep 10, 2026
CGC
CGC 8
-
CGC 9
-
CGC 10
$42
CGC P10
-
Availability
Availabilityi
1/10G: —
Graded: insufficient data · Sales per year: ~144 sales/yr · Graded copies: 67
TCGplayer Price History
NormalProduct 88402Fetched Sep 9, 3:38 AM
TCGplayer market
$1.90
Latest avg sale
$0.78
Units sold
427
Card Value FAQ
How much is Professor Oak's Research (Expedition #149) worth?
GemDelta shows Professor Oak's Research (Expedition #149) at $1.90 market price (TCGplayer market). Its Delta multiple is 28.0x.
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 $55.95. GemDelta labels this as an unverified PriceCharting guide fallback rather than verified recent sales.
Is Professor Oak's Research (Expedition #149) worth grading?
GemDelta records a 28.4% gem rate for Professor Oak's Research (Expedition #149), with 19 PSA 10 copies out of 67 total PSA grades and a 28.0x Delta. That describes the grading profile; it is not financial advice.