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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 $2.99 raw, with PSA 10 copies reaching $91.17 — a 30.5x grade premium. Price is down 3.5% in the last 30 days, though the 90-day trend tells a different story at +8.7% — worth watching for a clearer direction.
Current Prices (USD)
Ungraded
$2.99
PSA 7
$10.39
PSA 8
$18.60
PSA 9
$22.66
PSA 10
$91.17
ACE 10
—
BGS 10 Black
$595.00
CGC 10 Pristine
$1,100.00
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Raw Price Trend
7d
-2.0%
30d
-3.5%
90d
+8.7%
180d
-20.3%
1y
-8.0%
2y
+10.7%
5y
-3.5%

Quick price facts

Brock's Geodude [1st Edition] 66/132 from Gym Heroes has a current raw market value of $2.99.

Current raw value
$2.99
PSA 9 value
$22.66
PSA 10 value
$91.17
Raw value 7d
-2.0%
Raw value 30d
-3.5%
PSA 10 premium vs raw
30.5× raw
View all cards from Gym Heroes →
Collector Intel
30.5x
Raw → PSA 10
High-risk grade
7.6x
Raw → PSA 9
Grade multiplier
-3.5%
30d Price Move
Falling
Steady
Price Stability
2.0% 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 30x the raw price. The expected value accounts for the realistic probability.
$3
Buy Raw
~$25
Grading Fee
PSA Standard
$91
PSA 10 Value
+$63
Best Case (PSA 10)
if you pull a 10
Grade Multiples vs Raw
PSA 9$237.6x raw
PSA 10$9130.5x 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: $2.99, PSA 9: $22.66, PSA 10: $91.17 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 $91.17 is 30.5× the raw price of $2.99. After a ~$25 grading fee, a PSA 10 result would net approximately $88.18 — 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
  • 25 Jul 2026Raw
    ebaycompleted-auctions-usedlightly played
    $1.99
  • 22 Jul 2026Raw
    ebaycompleted-auctions-usednear mint
    $9.35
  • 19 Jul 2026Raw
    ebaycompleted-auctions-usedplayed
    $2.99
  • 19 Jul 2026Raw
    ebaycompleted-auctions-usednear mint
    $3.92
  • 19 Jul 2026Raw
    tcgplayercompleted-auctions-usednear mint
    $2.94