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PSA 10: PriceCharting; last PSA 10 sale May 23, 2026
GemDelta shows Koga's Grimer (Gym Challenge #78) at $4.49 market price (TCGplayer market). Its Delta multiple is 30.6x.
A PSA 10 Koga's Grimer (Gym Challenge #78) is currently shown at $123. GemDelta labels this as an unverified PriceCharting guide fallback rather than verified recent sales.
GemDelta records a 35.4% gem rate for Koga's Grimer (Gym Challenge #78), with 160 PSA 10 copies out of 452 total PSA grades and a 30.6x Delta. That describes the grading profile; it is not financial advice.
| Date | Sale |
|---|---|
| May 23, 2026 | $99.99 |
| May 18, 2026 | $157.50 |
| Apr 16, 2026 | $199.00 |
| Mar 30, 2026 | $122.50 |
| Mar 16, 2026 | $92.00 |