Grade Matrix
PSA
PSA 6
-
PSA 7
$11
PSA 8
$43
PSA 9
$48
PSA 10
$84
PSA 10: PriceCharting; refreshed Sep 10, 2026
CGC
CGC 8
-
CGC 9
-
CGC 10
$50
CGC P10
-
Availability
Availabilityi
1/10G: —
Graded: insufficient data · Sales per year: ~27 sales/yr · Graded copies: 11
TCGplayer Price History
NormalProduct 85897Fetched Sep 10, 3:34 AM
TCGplayer market
$1.12
Latest avg sale
$0.80
Units sold
71
Card Value FAQ
How much is Great Ball (Power Keepers #77) worth?
GemDelta shows Great Ball (Power Keepers #77) at $1.12 market price (TCGplayer market). Its Delta multiple is 33.6x.
How much is a PSA 10 Great Ball (Power Keepers #77) worth?
A PSA 10 Great Ball (Power Keepers #77) is currently shown at $83.74. GemDelta labels this as an unverified PriceCharting guide fallback rather than verified recent sales.
Is Great Ball (Power Keepers #77) worth grading?
GemDelta records a 9.09% gem rate for Great Ball (Power Keepers #77), with 1 PSA 10 copy out of 11 total PSA grades and a 33.6x Delta. That describes the grading profile; it is not financial advice.