Grade Matrix
PSA
PSA 6
-
PSA 7
$15
PSA 8
-
PSA 9
$9
PSA 10
$109
PSA 10: PriceCharting; refreshed Sep 10, 2026
CGC
CGC 8
-
CGC 9
-
CGC 10
$66
CGC P10
-
Availability
Availabilityi
1/10G: —
Graded: insufficient data · Sales per year: ~116 sales/yr · Graded copies: 44
TCGplayer Price History
NormalProduct 83985
No Normal price series for this product. Available: 1st Edition, Unlimited.
Card Value FAQ
How much is Brock's Training Method (Gym Heroes #106) worth?
GemDelta shows Brock's Training Method (Gym Heroes #106) at $1.99 market price (PriceCharting raw (eBay sold fallback)). Its Delta multiple is 54.9x.
How much is a PSA 10 Brock's Training Method (Gym Heroes #106) worth?
A PSA 10 Brock's Training Method (Gym Heroes #106) is currently shown at $109. GemDelta labels this as an unverified PriceCharting guide fallback rather than verified recent sales.
Is Brock's Training Method (Gym Heroes #106) worth grading?
GemDelta records a 18.2% gem rate for Brock's Training Method (Gym Heroes #106), with 8 PSA 10 copies out of 44 total PSA grades and a 54.9x Delta. That describes the grading profile; it is not financial advice.