Koffing
Sold price movement
- 12 months ago
- $1.72£1.29€1.51
- Today
- $1£0.75€0.88
- Change
- -$0.72-£0.54-€0.63 (-41.9%)
Market activity
| Price type | Pop share | PopulationPop | Sold 90d | Median | Price |
|---|---|---|---|---|---|
| Raw | – | 110 | $1.46£1.10€1.29 | $1£0.75€0.88 | |
| PSA 3 | 1 | – | – | – | |
| PSA 5 | 2 | – | – | – | |
| PSA 6 | 3 | 1 | – | $15.50£11.67€13.65 | |
| PSA 7 | 4 | 6 | $11£8.28€9.69 | $9.50£7.15€8.37 | |
| PSA 8 | 18 | 4 | – | $19.23£14.47€16.94 | |
| PSA 9 | 61 | 14 | $34.02£25.61€29.96 | $31.14£23.44€27.42 | |
| CGC/BGS 9.5 | – | – | – | $34£25.59€29.94 | |
| PSA 10 | 54 | 5 | $114.76£86.37€101.07 | $121.29£91.29€106.82 | |
About these prices
37.8% of copies sent to PSA come back a 10. Sold and median are 90 days of PSA sales. The 9.5 is a CGC and BGS grade, so it carries no PSA population.
Priced from 843 completed sales, updated Sep 30, 2026.
Price history
Recent sales
843 completed listings on eBay, Fanatics CollectShow 288 more, the newest 300 of 843
Koffing 51/102 Common Base Set Unlimited Pokemon Lightly Played 51/102$1.43£1.08€1.269Pokemon Cards - PSA 9 Koffing 51/102 - Base Set Unlimited - MINT - PSA9 051/102$31.14£23.44€27.429Pokemon Cards - PSA 9 Koffing 51/102 - Base Set Unlimited - MINT - PSA9 051/102$31.14£23.44€27.4291999 English Pokemon Base Set Unlimited Koffing Card 51/102 PSA 9 051/102$30£22.58€26.42Koffing 51/102 Base Set Pokémon Card Vintage 1999 Regular LP / NM 051/102$1.25£0.94€1.10Pokemon TCG Koffing 51/102 Base Set Regular Common English Basic 50 HP 051/102$0.40£0.30€0.3510PSA 10 Koffing 51/102 1999 Pokemon Base Set GEM MINT Vintage WOTC 051/102$139.90£105.30€123.219PSA 9 Koffing Pokemon Card 51/102 Base Set 1999 Mint Freshly Graded 51/102$46.99£35.37€41.38Koffing 051/102 Base Set Rare Vintage 1999 Pokemon Card Coughing Coffing Kofing 051/102$1.26£0.95€1.11Koffing 51/102 Base Set Regular Basic Pokemon Card Vintage 1999 NM 051/102$2.99£2.25€2.63Pokemon TCG | Koffing 51/102 | Base Set Unlimited Common | Near Mint 51/102$2.36£1.78€2.08Pokémon TCG Koffing Base Set Unlimited Common Card 51/102 1995 WOTC 51/102$3£2.26€2.64Pokemon TCG | Koffing 51/102 | Base Set Unlimited Common | Near Mint 51/102$2.37£1.78€2.09Koffing 51/102. Base Set WoTC Vintage (LP-NM) Buy 3 Get 1 Free. Pokemon 51/102$2.29£1.72€2.02Pokemon TCG - Koffing 051/102 Base Set Unlimited Regular - Moderately Played$0.70£0.53€0.62Vintage 1999 Pokémon Koffing 51/102 Base Set WOTC Card Non Holo TCG Unlimited 51/102$1£0.75€0.889Pokemon TCG Koffing 51/102 Base Set CGC 9 Mint Regular Grass English Vintage 51/102$9.50£7.15€8.37Koffing 51/102 Common Base Set Unlimited Pokemon Lightly Played 51/102$1.50£1.13€1.32Koffing 51/102 Common Base Set Unlimited Pokemon Moderately Played 51/102$1.99£1.50€1.75Koffing 51/102 Common Base Set Unlimited Pokemon Lightly Played 51/102$1.74£1.31€1.539WOTC 1999 Koffing Base Set 51/102 Regular 50 HP English Pokemon TCG TAG 9 051/102$23£17.31€20.267Pokemon Base Set Koffing 51/102 Regular Common 1999 English PSA 7 051/102$14.15£10.65€12.46Koffing 51/102 Common Base Set Unlimited Pokemon Moderately Played 51/102$1.99£1.50€1.75Pokemon TCG | Koffing 51/102 | Base Set Unlimited Common | Near Mint 51/102$2.37£1.78€2.09
8Pokemon Koffing 51/102 Base Set Regular PSA 8 Graded 1999 English 051/102$18.99£14.29€16.729Pokemon TCG Koffing 51/102 Base Set CGC 9 Mint Regular Grass English Vintage 51/102$9.87£7.43€8.699Pokemon Koffing Base Set 051/102 Regular Common EN 1999 PSA 9 Graded 051/102$36£27.10€31.709Pokemon TCG Koffing 51/102 Base Set Regular Grass CGC 9 Mint English Graded 51/102$15.50£11.67€13.659Pokemon TCG Vintage Koffing 51/102 Base Set CGC 9 Mint Regular English WOTC USA 51/102$9.87£7.43€8.6981999 Pokémon Base Set Koffing 51/102 CGC 8.5 NM/Mint+ Vintage WOTC Slab 51/102$14.99£11.28€13.2010Koffing 51/102 Base Set 1999 Unlimited Pokemon PSA 10 GEM MINT LOW POP of 54 051/102$134.56£101.28€118.508BGS 8 NM Mint Base Set Unlimited Koffing 51/102 Pokemon Card 1999 51/102$25£18.82€22.02More from Base Set
All 102 cards →
Charizard
Charizard (Black Dot Error)
Blastoise
Venusaur
Mewtwo
AlakazamGrading odds
CGC has graded 1,945 copies. Where they landed:
These are CGC grades. The prices above are for PSA slabs, and a CGC 10 is not the same grade as a PSA 10, so read the two as separate markets rather than one.
Why the verdict weights the odds
Only 28.4% of copies reach a 10, which is why the top price is the wrong number to plan around. Weighting each grade’s PSA price by these odds, a submission is worth $51.72£38.93€45.55 on average against $100.99£76.01€88.94 for the card plus $79.99£60.20€70.44 at Regular, the cheapest level PSA will insure it at. That loses $49.27£37.08€43.39, so a copy is worth more raw.
What CGC copies sold for
Sold prices from listings that named the grader and the grade, not asking prices, and not a PSA figure converted across. A CGC 9 runs about 0.44x the PSA 9 on the cards where we hold both, but the spread is wide enough that it is only worth quoting where copies actually traded, which is what these are. The count beside each price is how many.
CGC 9 and 9.5 are one row on purpose. A CGC 9.5 sells for 3% more than a 9 across the corpus and is the cheaper of the two on nearly half of cards, so the market is not pricing them apart and splitting them here would invent a distinction. BGS is left split because there the same test says a 9.5 really is worth about 30% more.
| Grade | Median sold | Sales |
|---|---|---|
| CGC 9 or 9.5 | $11.50£8.66€10.13 | 13 |
| CGC 8.5 | $9.04£6.80€7.96 | 8 |
Card facts
- Card number
- 051/102
- Rarity
- Common
- Illustrator
- Mitsuhiro Arita
- Set released
- Jan 9, 1999
- PSA population, all printings
- 1,580
- Printings priced
- 1
Looking for a different one? All 56 Koffing cards we price →
The same card in other sets
SM - Cosmic Eclipse243/236$39.09£29.42€34.43
EX Delta Species72/113$33.66£25.33€29.64
EX Team Rocket Returns61/109$32.99£24.83€29.05
EX Deoxys62/107$32.95£24.80€29.02
Base Set (Shadowless)051/102$32.29£24.30€28.44
Great Encounters74/106$28.16£21.19€24.80
Expedition114/165$27.46£20.67€24.18
EX Ruby and Sapphire54/109$13£9.78€11.45What moves the price of this card
The Koffing on this page is the Normal printing from Base Set, and it trades at $0.86£0.65€0.76 in near mint condition. Only one printing of this card was produced, so there is no cheaper version to confuse it with.
Graded, it runs PSA 6 $15.50£11.67€13.65, PSA 7 $9.50£7.15€8.37, PSA 8 $19.23£14.47€16.94, PSA 9 $31.14£23.44€27.42, CGC/BGS 9.5 $34£25.59€29.94, PSA 10 $121.29£91.29€106.82. PSA has graded 1,580 copies of it. 843 completed sales are on file.
What is a PSA 10 Koffing worth?
A PSA 10 Koffing from Base Set sells for $121.29. 37.8% of the copies PSA has graded came back a 10, so that price is the best case rather than the one a submission should expect.
Is Koffing from Base Set worth grading?
On the numbers, no. The average submission is worth $61.81 with every grade weighted by how often this card comes back at it, against $1 for a raw copy plus $99.99 to send it through PSA Regular, so it loses $39.18.
Condition does most of the work below the surface. A copy with soft corners or a print line off centre trades well under the market price shown here, and a copy clean enough to grade trades well above it, which is why the PSA 10 sits at $121.29£91.29€106.82. Before you value your own copy, look at the corners under a light and check the centring on the back, where most cards give themselves away.
What Koffing does
Basic · 50 HP · retreat 1
Foul Gas10Flip a coin. If heads, the Defending Pokémon is now Poisoned; if tails, it is now Confused.
Weak to Psychic ×2. Tournament legal in neither standard nor expanded.