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Brock's Geodude [1st Edition] #66 Pokémon card from Gym Heroes

Brock's Geodude [1st Edition] 66/132

Gym Heroes

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Brock's Geodude [1st Edition] #66 from Gym Heroes currently trades at $3.06 raw, with PSA 10 copies reaching $81.53 — a 26.6x grade premium. Price is up 2.0% in the last 30 days, though the 90-day trend tells a different story at -6.8% — worth watching for a clearer direction.
Current Prices (USD)
Ungraded
$3.06
PSA 7
$10.49
PSA 8
$21.25
PSA 9
$23.08
PSA 10
$81.53
ACE 10
—
BGS 10 Black
$530.00
CGC 10 Pristine
$1,100.00
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Raw Price Trend
7d
-3.2%
30d
+2.0%
90d
-6.8%
180d
-15.3%
1y
-3.2%
2y
+13.2%
5y
+0.3%

Quick price facts

Brock's Geodude [1st Edition] 66/132 from Gym Heroes has a current raw market value of $3.06.

Current raw value
$3.06
PSA 9 value
$23.08
PSA 10 value
$81.53
Raw value 7d
-3.2%
Raw value 30d
+2.0%
PSA 10 premium vs raw
26.6× raw
View all cards from Gym Heroes →
Collector Intel
26.6x
Raw → PSA 10
High-risk grade
7.5x
Raw → PSA 9
Grade multiplier
+2.0%
30d Price Move
Rising
Steady
Price Stability
3.2% swing this week

Calculated from price history, PSA population data, and market trends. Not financial advice.

Grading Calculator

Based on PSA Standard tier (~$25 USD). Assumes a perfect PSA 10 result — actual outcome depends on card condition.

⚠️ High-variance grade. PSA 10 is 27x the raw price. The expected value accounts for the realistic probability.
$3
Buy Raw
~$25
Grading Fee
PSA Standard
$82
PSA 10 Value
+$53
Best Case (PSA 10)
if you pull a 10
Grade Multiples vs Raw
PSA 9$237.5x raw
PSA 10$8226.6x raw

Frequently asked questions

How much is Brock's Geodude [1st Edition] #66 from Gym Heroes worth?+
Brock's Geodude [1st Edition] #66 from Gym Heroes is currently worth Raw: $3.06, PSA 9: $23.08, PSA 10: $81.53 based on recent sold listings. Prices update daily from real eBay sales.
Is Brock's Geodude [1st Edition] #66 worth grading?+
The PSA 10 price of $81.53 is 26.6× the raw price of $3.06. After a ~$25 grading fee, a PSA 10 result would net approximately $78.47 — assuming the card grades a 10.
Where do PokePrices Brock's Geodude [1st Edition] #66 prices come from?+
Prices are tracked nightly from real sold listings on PriceCharting (raw, PSA 9 and PSA 10). PSA population data is sourced from PSA's public reports. We do not use asking prices — only confirmed sales.

Recent verified sales

Find this card on eBay →Affiliate · we may earn commission
  • 16 Sep 2026Raw
    ebaycompleted-auctions-usedunknown
    $2.99
  • 2 Sep 2026Raw
    tcgplayercompleted-auctions-usednear mint
    $5.95
  • 28 Aug 2026Raw
    tcgplayercompleted-auctions-usednear mint
    $2.96
  • 27 Aug 2026Raw
    ebaycompleted-auctions-usedunknown
    $3.25
  • 26 Aug 2026Raw
    tcgplayercompleted-auctions-usednear mint
    $3.10