Koga's Koffing
Gym Challenge · #79 · Common
Market value
$2.81▲ 1.1%30d
PSA 10 price
$281.03(+9901%)
Price history
+24.9% since Apr 7, 2026
Apr 7, 2026Low $2.25 · High $2.84Nov 14, 2026
Series
Gym
Artist
Ken Sugimori
Release date
2000/10/16
Region
Kanto
Types
Grass
What grading does to this card
If it grades a PSA 10 (40%)
+$171.70
sells for $281.03
If it does not (60%)
−$45.63
PSA 9 and lower, on average
Grading pays off if more than 21% of copies hit a 10. This card: about 40%. All figures are net of the raw card, grading, shipping and selling fees.
How we weigh the odds
We weigh every outcome by how often PSA-graded copies of this card come back a 10, 9 or 8. The average over all outcomes is the last line below.
40% chance of PSA 10 × $281.03$113.26
43% chance of PSA 9 × $38.12$16.39
11% chance of PSA 8 × $18.61$2.05
6% PSA 7 or lower × $2.53 (90% of raw)$0.14
Expected sale value$131.90
Selling fees (~13%)−$17.15
Raw card−$2.81
Grading (PSA Standard)−$59.99
Shipping both ways−$10.00
Average over all grades (+58%)+$41.95
Pop reports count submitted cards, and people mostly submit their best copies, so the real odds for a random raw card are likely a bit lower.
Buy Signal · Population report
Strong Buy41.1% of PSA-graded copies come back a 10
PSA population
521
Graded PSA 10
214
Gem Rate
41.1%
| Grade | PSA |
|---|---|
| 10 | 214 |
| 9 | 224 |
| 8 | 55 |
| 7 | 21 |
| 6 | 6 |
| 5 | 1 |
| Total | 521 |
Grade 10 value
What a Grade 10 sells for, by grading company.
PSALeads$281.03
CGC$38.85
AGS$12.50
Price ladder
Every condition and grade Scrydex tracks for this card.
Raw
NM$2.81
LP$2.27
MP$1.61
HP$1.85
DM$1.07
Graded
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More versions of Koga's Koffing
Every other printing of this character across sets.
