Koga's Muk Gym Challenge #26
Koga's Muk is a Rare Pokémon card from Gym Challenge (#26), illustrated by Ken Sugimori. It's a Stage 1 Grass-type Pokémon with 80 HP, evolving from Koga's Grimer, weak to Psychic ×2. Its current blended market value is $16.12 ungraded, with a PSA 10 worth around $150 — a gem-mint grading premium of roughly 9× the raw value. Prices are aggregated across marketplaces — raw and graded, updated daily and shown in your local currency.
Prices last updated 3 July 2026.
Price by variant
TCGplayer market price per printing — reverse holo, 1st edition and unlimited often differ sharply.
| Grade | Relative value | Price |
|---|---|---|
| PSA 10 | 7 sold$150$127–$172 | |
| PSA 9 | 3 sold$45$38–$52 | |
| PSA 8 | 3 sold$35$30–$41 | |
| PSA 7 | $21$21–$21 |
Price history · raw near-mint
Recent sold prices
Real completed sale prices from Fanatics Collect — weekly and premier auctions plus marketplace Buy It Now sales, refreshed periodically. Grade read from the listing title.
Population across graders
Should you grade it?
after ~$71.49 grading fee → 9.3× the raw value
| Target grade | Est. value | Grading fee | Net vs raw | Multiple |
|---|---|---|---|---|
| PSA 10 | $149.65 | $71.49 | +$62 | 9.3× |
| PSA 9 | $45.00 | $70.44 | −$42 | 2.8× |
| PSA 8 | $35.32 | $70.34 | −$51 | 2.2× |
⚖️ Risk-adjusted return
Best case isn't the whole story. Weighting every grade by how often it actually happens, across 352 PSA-graded copies:
| Likely outcome | Chance | Value |
|---|---|---|
| PSA 10 | 37.8% | $150.00 |
| PSA 9 | 42.6% | $45.00 |
| PSA ≤8 | 19.6% | $16.00 |
Net = graded value − raw value − grading cost (tier fee + ~$20 round-trip shipping), using PSA fees as of 2026-06-28; the paused PSA Value tier is excluded so this isn't overstated. Gem rate is estimated from cumulative PSA population, which skews toward nicer, resubmitted copies — so it overstates the true grade rate. Treat it as a guide, not a guarantee.
We'll email you when this card's value crosses your target.
Where to buy
Cross-market prices
116% spreadCurrently 116% cheaper on PriceCharting than Cardmarket. These are independent market prices for the same card — a wide gap can mean a buying opportunity. Informational only, not arbitrage advice.
Market signal
Derived from this card's 90-day price history, recent trend and cross-market price gap. Informational, not advice.
🇪🇺 Cardmarket price · Europe
Card text
Evolves from Koga's Grimer.
Card details
More from Gym Challenge
Frequently asked questions
How much is Koga's Muk (Gym Challenge #26) worth?
As of 3 July 2026, Koga's Muk from Gym Challenge is worth approximately $16.12 ungraded (near-mint), and around $150 in PSA 10 gem mint. Values are blended from real Cardmarket, eBay sold and TCGplayer prices and update daily.
What is the PSA 10 price for Koga's Muk?
A PSA 10 (gem mint) Koga's Muk from Gym Challenge is worth around $150 — roughly 9× the raw ungraded value of $16.12.
Should I grade my Koga's Muk?
A PSA 10 sells for about $150 versus $16.12 raw — roughly a 9× uplift. Grading is worth it when that premium comfortably beats the grading fee and the card is clean enough to have a real shot at a 10. See the "Should you grade it?" estimate above for net profit per grade.
Is Koga's Muk rare?
Koga's Muk is a Rare card from Gym Challenge (card #26), illustrated by Ken Sugimori. Its current blended market value is $16.12 ungraded.