Koga's Koffing79/132 · Gym Challenge Price & Value
Market value · Near Mint · Unlimited
Pack fresh $4est.
- PSA 8$143 sold · 90d · modelled · pop 12
- PSA 9$201 sold · 90d · modelled · pop 34
- PSA 10$57modelled · pop 21
Make sure you have the right card
Every price on this page is for Gym Challenge #79/132, 2000. Check yours against the tells below before you buy, sell or grade.
A black “EDITION 1” stamp sits to the left of the picture, between the illustration and the card's lower text. No stamp means it is not 1st Edition, whatever else the listing says.
On the WOTC printings (1999–2002): a grey drop shadow runs down the right side of the picture frame, and there is no edition stamp. This is the common printing and the cheapest of the three.
What's your copy worth?
Estimated. This card has enough sales to price the top 15% but not the top 5%, so pack-fresh is projected from the gap we measure between those two tiers on cards that do — about 1.4x on vintage, 1.2x on modern. $4.21. That's about +112% over a typical Near Mint copy.
ⓘ How do we work this out?
We take every real sale of this exact card over the last 12 months (25 sales), sort them by price, and read off the top 15% and top 5%. No multipliers, no guesses — the prices cleaner copies actually fetched.
Why cleaner copies cost more: buyers can see condition in the photos and pay for it. Listings sellers describe as pack fresh or gem mint land in this top band 1.7× more often than ordinary ones — the premium follows the card, not the hype.
Copies in this band are also the ones collectors send to grading: far more likely than a typical binder copy to be submitted at all — and to come back with the strong grade that carries the PSA prices shown on this page. That prospect is part of what buyers are paying for here.
These are read straight off this card's own completed sales — sort them by price and take the top 15% and top 5%. Whether your copy qualifies is a judgment made by looking at the card.
✨ Is it worth it?
An AI market read of this card — value, momentum, grading economics, liquidity. It lays out the data; you decide.
Koga's Koffing is a Common Pokémon card from Gym Challenge (#79, released 2000), illustrated by Ken Sugimori. It's a Basic Grass-type Pokémon with 40 HP, weak to Psychic ×2. Prices below are aggregated across marketplaces — raw and graded, updated daily and shown in your local currency.
Prices last updated 7 September 2026.
Koga's Koffing price history & recent sales
Price history · Raw
We'll email you when this card's value crosses your target.
Verified sales history
High confidence74 sales in 90 days, closely clustered. · Very liquid — Sells often
9 of 10 verified sales were competitive auctions — this price reflects real bidding, not asking prices. A graded copy trades roughly every 36 days (median gap between cert-verified sales).
By grade
- Raw$1.9975 sales · 74 in 90d, sells often
- PSA 10$40.004 sales
- PSA 8$14.003 sales · 3 in 90d, occasional
- CGC 9.5$16.003 sales · 2 in 90d, rare
- CGC 0.5$1172 sales
- PSA 9$20.501 sale · 1 in 90d, rare
- PSA 6$12.501 sale
- CGC 9.6$22.001 sale · 1 in 90d, rare
Is Koga's Koffing worth grading?
Most copies come back PSA 9 — worth $20 against the $72 you put in, a $52 loss. The money is in the 1 in 1 that reach PSA 9 or 10 and sell for $20–$40. Averaged over every outcome that is −$49 a card.
That is the average submitted copy. Tell us about yours and the verdict re-prices — most cards stop being worth grading here. Not sure? Grade it from a photo →
These are set to a flawless copy — the answer above. Change any of them to re-price it for the card in your hand.
Compare graders, and the live market
The verdict above is PSA's — the grader the population report, the ROI table and the price ladder on this page all use. Trader prices all three graders against each other and adds what the asking market is doing right now.
- PSA, CGC and Beckett side by side — each on its own population and its own fees, with Beckett scored on the 9.5 its market actually pays for.
- Lightly and moderately played — the same expected return for a copy that cannot gem.
- Ask vs sold — what the live listings want, against what copies have really closed at.
- Momentum — the 30-day median against the 90-day, per grade.
- Where it sells higher — the Fanatics-versus-eBay premium, with the sale counts behind it.
- Population history — the weekly PSA census, so you can see how fast 10s are arriving before you post the card.
The odds
Koga's Koffing is a Commoncard — a guaranteed slot in every pack, not a rarity gamble, so there's no pull-odds figure for it.
Estimates only. Pack odds come from CardTrack's pack model (the same one behind the pack simulator) — not an official rate. Grading odds are the real cumulative PSA population, which skews toward nicer, resubmitted copies, so it overstates the true first-submission gem rate. Full grade-by-grade breakdown below.
Grade-by-grade ROI & risk-adjusted outcomesNet vs raw per target grade, plus the probability-weighted distribution
| Target grade | Est. value | Grading fee | Net vs raw | Multiple |
|---|---|---|---|---|
| PSA 10 | $57.25 | $71 | −$15 | 28.9× |
| PSA 9 | $20.31 | $70 | −$52 | 10.3× |
| PSA 8 | $14.00 | $70 | −$58 | 7.1× |
⚖️ Risk-adjusted return
Best case isn't the whole story. Weighting every grade by how often it actually happens, across 72 PSA-graded copies:
| Outcome | Chance | Value |
|---|---|---|
| PSA 10 | 29.2% | $40.00 |
| PSA 9 — typical | 45.8% | $20.31 |
| PSA 8 | 16.7% | $14.00 |
| PSA 7 | 4.2% | $1.98 |
| PSA 6 | 1.4% | $1.98 |
| PSA 5 | 1.4% | $1.98 |
| Other (half grades, authentic) | 1.4% | $1.98 |
Net = graded value − raw value − grading cost (tier fee + ~$20 round-trip shipping), using PSA fees as of 2026-08-26; 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.
Population across gradersPSA, CGC, BGS & TAG — every grade, with gem rates
21 of the 72 PSA-graded Koga's Koffing copies came back a gem-mint 10 — 29%. The rest graded lower.
Bar length is relative to this grader's most common grade; the figure on the right is the share of all 72.
Bar length is relative to this grader's most common grade; the figure on the right is the share of all 497.
Bar length is relative to this grader's most common grade; the figure on the right is the share of all 48.
Real graded population from PSA, CGC, BGS & TAG — a lower gem rate means a Koga's Koffing 10 is harder to pull.
Copies for sale right now
Koga's Koffing 79/132 Common Gym Challenge Pokemon Unlimited Moderately PlayedRaw · eBay$0.99
Pokemon Koga's Koffing (79/134) Gym Challenge MPRaw · eBay$0.99
Gym Challenge #079/132 Koga's Koffing (79)Raw · eBay$0.99
Koga's Koffing (79) Common Gym Challenge 079/132 Unlimited HPRaw · eBay$0.99
Gym Challenge #079/132 Koga's Koffing (79)Raw · eBay$1.00
Koga's Koffing 79/132 Gym Challenge RegularRaw · eBay$1.00Cheapest raw copy $0.99 — 50% below our near-mint estimate of $2
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All grades & conditions
Every grade we pricePSA / CGC / BGS ladder with per-grade population
| Grade | Relative value | Price |
|---|---|---|
| PSA 10pop 21 | modelled$57$49–$66 | |
| PSA 9pop 34 | modelled$20$17–$23 | |
| PSA 8pop 12 | modelled$14$12–$16 |
Raw condition ladderNM → damaged, with real sold medians where we have them
Price by printingBase vs reverse holo vs 1st edition — priced separately
Price by variant
TCGplayer market price per printing — reverse holo, 1st edition and unlimited often differ sharply.
Market dataCross-market spread, EU price, momentum & community buzz
Cross-market prices
46% spreadCurrently 46% cheaper on PriceCharting than TCGplayer. 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.
Card textAttacks, abilities, weakness / resistance / retreat
Flip a coin. If heads, this attack does 10 damage to each Benched Pokémon (including your own). (Don't apply Weakness and Resistance for Benched Pokémon.)
Card detailsSet, rarity, artist, Pokédex & specs
Other Koga's Koffing cards
There are 2 different Koga's Koffing printings — make sure you're valuing the right one. This is Gym Challenge #79 (Common).
More from Gym Challenge
Frequently asked questions
How much is Koga's Koffing (Gym Challenge #79) worth?
As of 7 September 2026, Koga's Koffing from Gym Challenge is worth approximately $1.98 ungraded (near-mint), and around $57 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 Koffing?
A PSA 10 (gem mint) Koga's Koffing from Gym Challenge is worth around $57 — roughly 29× the raw ungraded value of $1.98.
Should I grade my Koga's Koffing?
Grading is worth it when the PSA 10 premium comfortably beats the grading fee and the card is clean enough to have a real shot at a 10 — the "Should you grade it?" estimate above works that out per grade, net of the current fee.
Is Koga's Koffing rare?
Koga's Koffing is a Common card from Gym Challenge (card #79).
How do I know if my Koga's Koffing is 1st Edition?
Bottom-left of the illustration window: A black “EDITION 1” stamp sits to the left of the picture, between the illustration and the card's lower text. No stamp means it is not 1st Edition, whatever else the listing says.
How do I know if my Koga's Koffing is Unlimited?
Right-hand edge of the illustration window: On the WOTC printings (1999–2002): a grey drop shadow runs down the right side of the picture frame, and there is no edition stamp. This is the common printing and the cheapest of the three.
Cite & embed this card
Free to use with attribution to CardTrack.
Koga's Koffing (Gym Challenge #79) — Pokémon market value $1.98, PSA 10 $57.25. Source: CardTrack, https://cardtrack.com/pokemon/card/gym-challenge/koga-s-koffing-79<iframe src="https://cardtrack.com/embed/card?id=gym2-79" width="100%" height="160" style="border:0;max-width:460px" title="Koga's Koffing price — CardTrack" loading="lazy"></iframe>
<p style="font:12px system-ui">Source: <a href="https://cardtrack.com">CardTrack</a></p>