Image © The Pokémon Company, shown for identification.
Koga's Arbok
Gym Challenge · #25/132
Koga's Arbok (25/132), the Rare from Gym Challenge, has an estimated ungraded market price of about $9.50, typically in the $8–$11 range.
As of September 14, 2026 · tracked daily by Riffle · estimates, not financial advice · how these numbers work
The modeled fair value of this card, with a confidence grade: what it should trade at, not just what it lists at. Part of Riffle premium, alongside price history and the full graded ladder.
About Koga's Arbok
Koga's Arbok is a Rare (25/132) from the Pokémon Gym Challenge set, released October 16, 2000. Ungraded copies currently trade at an estimated market price of $8–$11. The artwork is by Ken Sugimori. Riffle tracks its market price daily; graded (PSA) comps and full price history are available with Riffle.
FAQ
How much is Koga's Arbok (25/132) worth?
Koga's Arbok (25/132), the Rare from Gym Challenge, has an estimated ungraded market price of about $9.50, typically in the $8–$11 range.
Should I grade Koga's Arbok (25/132)?
It's roughly a wash: with a 26% PSA 10 gem rate and current graded prices, grading a near-mint Koga's Arbok (25/132) is estimated to come out within about $10 of selling it raw (est.); grade for protection or display, not profit.
Assumes ~$25/card bulk-rate grading (standard service costs more); ignores turnaround time, sub-9 grades, and shipping. A screen, not a promise.
Is Koga's Arbok (25/132) rare?
Koga's Arbok (25/132) is a Rare. PSA has graded 101 copies to date, so graded supply is measurable and growing.
How rare is a PSA 10 Koga's Arbok (25/132)?
Of the 101 copies PSA has graded, 26% earned a PSA 10. That's a low gem rate, so flawless copies are genuinely hard to come by. Grade-by-grade population and pop-over-time appear with Riffle premium.
More from Gym Challenge
Should I grade Koga's Arbok?
Roughly a wash: grade for protection, not profit (est.)
Expected grading return from this card’s own PSA grade mix (26% gem rate; grades under 8 valued at the PSA 8 price) and current graded market prices, minus a ~$25/card bulk-rate grading fee, compared against selling ungraded at market price. Standard grading service costs more; centering risk, turnaround time, and shipping aren’t included. The exact PSA 8/9/10 prices behind this are part of Riffle premium. Not financial advice.
PSA population & gem rate
From the PSA population census, captured monthly by Riffle. A 26% gem rate is on the hard side; PSA 10 copies of this card are scarcer than the typical modern chase card. Grade-by-grade population and pop-over-time appear with Riffle premium.
- $8–$11 is the middle 80% of clean market activity, not the cheapest listing and not the most hopeful one.
- The band spans about ±16% around its midpoint: a moderate spread.
- Sampled daily since July 28, 2026, current as of September 14, 2026.
When the data thins, the band widens and says so, it never fakes precision. Exact source prices are part of Riffle premium; the band is Riffle’s own figure to publish. How these numbers work →