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PSA 10: Median of 3 sales, last 45 days · newest Oct 3, 2026 · checked Oct 25, 2026
PSA 9: Median of 4 PSA 9 sales in the last 90 days, latest 2026-10-06. Grade 9 guide (all graders): $59.
Grade 7 and Grade 8 are PriceCharting guides across all graders (PSA, CGC, BGS, SGC, TAG).
GemDelta shows Koga's Muk (Gym Challenge #26) at $16.15 market price (TCGplayer market). Its Delta multiple is 14.9x.
A PSA 10 Koga's Muk (Gym Challenge #26) is currently shown at $240, the median of 3 PSA 10 sales in the last 45 days (newest Oct 3, 2026).
GemDelta records a 36.2% gem rate for Koga's Muk (Gym Challenge #26), with 132 PSA 10 copies out of 365 total PSA grades and a 14.9x Delta. That describes the grading profile; it is not financial advice.
| Date | Listing | Sale |
|---|---|---|
| Oct 3, 2026 | 2000 Pokemon Gym Challenge 1st Edition #26 Koga’s Muk PSA 10 GEM MINT 26/132 | $240.00 |
| Oct 2, 2026 | 2000 Pokemon Gym Challenge 1st Edition #26 Koga’s Muk PSA 10 with Back Scratch 26/132 | $250.00 |
| Sep 29, 2026 | 2000 Pokemon Gym Challenge 1ST EDITION #26/132 KOGA'S MUK PSA 10 GEM MINT | $235.00 |
| Sep 8, 2026 | Koga's Muk 1st Edition 2000 Pokemon Gym Challenge #26/132 PSA 10 WoTC 26/132 | $225.00 |
| Aug 31, 2026 | 2000 Pokemon Gym Challenge 1st Edition Koga's Muk #26/132 PSA 10 GEM MINT | $256.00 |
| Jul 9, 2026 | 61225135 Koga's Muk 2000 Pokemon Gym Challenge 1st Edition #26 PSA 10 26/132 | $201.50 |