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Koga's Grimer.

Gym Challenge · 078/132 · Common
updated Aug 14, 2026
Koga's Grimer 078/132 from Gym Challenge
Raw market value · 1st Edition
$4.03.
near mint, ungraded7 day +0.5% · 30 day +2.8%worth grading · clears $0.25
Price by printing
1st Editionthis page$4.03
Unlimited$1.19
Check live eBay pricesPrices above are what copies actually sold for, not what sellers are asking.

Price history and graded value

monthly median sold price
$1$3.2$10$32SEP '21MAY '23DEC '24AUG '26

Grading odds

PSA has graded 59 copies. Where they landed:

PSA 1033.9%
PSA 933.9%
PSA 815.3%
PSA 76.8%
6 or lower10.2%
✓ Worth grading
$26.87
average submission value

Weighting every grade by how often this card actually comes back at it, a submission is worth $26.87 on average. The card plus the $25 fee costs $26.62, so grading clears its cost by $0.25. Only 33.9% of copies reach a 10, which is why the top price is the wrong number to plan around.

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What moves the price of this card

The Koga's Grimer on this page is the 1st Edition printing from Gym Challenge, and it trades at $4.03 in near mint condition. The other 1 printing of the same card sits lower, which is normal: the scarcer print run always carries the premium.

Condition does most of the work below the surface. A copy with soft corners or a print line off centre trades well under the market price shown here, and a copy clean enough to grade trades well above it, which is why the PSA 10 sits at $56.86. Before you value your own copy, look at the corners under a light and check the centring on the back, where most cards give themselves away.