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Koga's Koffing #79, 1st Edition, Gym Challenge

  • Card number: #79/132
  • Rarity: Common
  • Finish: Non-Holo

A PSA 9 Koga's Koffing #79 1st Edition from Gym Challenge has a TCGBerg fair value of $38 as of Nov 15, 2026. TCGBerg has recorded 18 PSA 9 sales of this card, the latest on Nov 9, 2026. PSA has graded 224 copies at PSA 9.

TCGBerg fair valuePSA 9
As of Nov 15, 2026
$38up 8.3%30-day change

TCGBerg Algorithm (estimated from recorded sales).

Fair value3 months
Last sale$40Nov 9, 20266.9% above fair
5-sale avg$39Sep 28Nov 9
Population · PSA 9
224
Market cap
$8.5K
Volatility
3.8%
YTD
↑ 31.1%
Sales evidence
Very strong

TCGBerg fair value · PSA 9

$38

30D8.3%YTD31.1%
Sales evidenceVery strong
Market cap
$8.5K
fair value x population
Population
224
graded copies
Last sale
$40
+6.9% vs fair
5-sale avg
$39
recent sales
Grading

Price history

Open terminalPro

Weekly fair value for PSA 9.

Open in TerminalCandles, every grade, full historyPro

What the evidence says

The last PSA 9 sale, $40 on Nov 9, 2026, sits 6.9% above the $38 fair value. The value weighs 18 PSA 9 sales from the past year, not the latest one alone. Its confidence band runs from $36 to $39. A PSA 10 ($238) is worth 6.3 times a PSA 9 ($38). Over the past 30 days the PSA 9 value has risen 8.3%.

TCGBerg fair value by grade

Value at each grade and ungraded condition. Log scale. Tap a row to switch the whole page.

  • Raw NM$2.75Ungraded · TCGBerg fair value
  • Raw LP$2.31Ungraded · TCGBerg fair value
  • Raw HP$1.90Ungraded · TCGBerg fair value
  • Raw MP$1.76Ungraded · TCGBerg fair value
  • Raw Damaged$1.07Ungraded · market price
hatched = market price, not a TCGBerg fair value

Behind the scenes

What goes into this price, and how much we know.

Recent sales

20 tracked

Each sale against the grade's fair value on the day it sold.

  • $40
    Nov 9, 2026 · via eBay
    PSA9above fair value by 6.9%
  • $270
    Nov 9, 2026 · via eBay
    PSA10above fair value by 13.5%
  • $57
    Nov 8, 2026 · via eBay
    PSA9above fair value by 67.0%
  • $35
    Nov 2, 2026 · via Fanatics Collect
    CGC Gem Mint 10below fair value by 7.2%
  • $199
    Nov 2, 2026 · via Fanatics Collect
    PSA10below fair value by 16.1%

15 more sales with Pro

Up to 20 recent sales, each with its venue and its gap to fair value.

Includes a sale 26.0% below fair value

All grades matrix

Every grade we track for this printing.

  • CGC6$8.57
    1d -7d -30d -
    Pop
    5
    Mcap
    -
    Evidence
    Sparse
    Last
    -
  • CGC Gem Mint 10$35
    1d 6.8%7d 6.8%30d 6.8%
    Pop
    50
    Mcap
    $1.7K
    Evidence
    Strong
    Last
    $35
  • CGC9.5$17
    1d 11.2%7d 11.2%30d 11.2%
    Pop
    11
    Mcap
    $186
    Evidence
    Limited
    Last
    $13
Listings
CGC6$8.575----Sparse-
CGC Gem Mint 10$3550$1.7Kdown 6.8%down 6.8%down 6.8%Strong$352w ago
CGC9.5$1711$186up 11.2%up 11.2%up 11.2%Limited$137mo ago
BGS9.5$148$1080.0%0.0%0.0%Sparse-
PSA10$238214$50.9Kup 0.7%down 5.9%up 27.4%Limited$2706d ago
PSA9$38224$8.5Kup 11.1%up 8.3%up 31.9%Very strong$406d ago
PSA8$2855$1.5K0.0%up 2.7%up 19.1%Strong$282w ago
PSA7$1921$405up 0.4%down 1.3%up 24.9%Limited$8.504mo ago
PSA6$146$820.0%down 3.4%down 11.3%Sparse-
PSA5$141-0.0%down 3.4%down 11.3%Sparse-
Raw$2.75--0.0%up 2.2%-Very strong$3.004w ago

Graded population report

812 graded copies of Koga's Koffing 1st Edition across 20 grades.

PSA 10
214 · 26%
PSA 9
224 · 28%
PSA 8
55 · 6.8%
PSA 7
21 · 2.6%
PSA 6
6 · 0.7%
BGS 9.5
8 · 1.0%
BGS 9
2 · 0.2%
CGC Pristine 10
8 · 1.0%
CGC Gem Mint 10
50 · 6.2%
CGC 9.5
11 · 1.4%
CGC 9
91 · 11%
CGC 8.5
66 · 8.1%
CGC 8
30 · 3.7%
CGC 7.5
11 · 1.4%
CGC 7
6 · 0.7%
CGC 6.5
1 · 0.1%
CGC 6
5 · 0.6%
CGC 5.5
1 · 0.1%
CGC 5
1 · 0.1%
PSA 5
1 · 0.1%

PSA 9 makes up 28% of graded copies: 224 of 812. It’s the most common grade for this card.

Analysis

Koga's Koffing - 1st Edition Normal at PSA 10 carries a TCGBerg fair value of $238 as of 2026-11-14. We track a TCGBerg fair value across 10 grades from Gym Challenge, from CGC 6 up to PSA 10. A graded population of 214 copies sits behind the PSA 10 grade. The PSA 10 valuation rests on limited sales evidence. Over the past 30 days, the PSA 10 TCGBerg fair value has fallen 5.9%.

PSA 9 - frequently asked

How much is a PSA 9 Koga's Koffing - 1st Edition Normal from Gym Challenge worth?
$38 as of 2026-11-14, the model-derived TCGBerg fair value for a PSA 9 Koga's Koffing - 1st Edition Normal from Gym Challenge. It rests on very strong sales evidence. This estimate is not a guaranteed sale price.
What is the graded population of a PSA 9 Koga's Koffing - 1st Edition Normal from Gym Challenge?
224 copies have been graded at PSA 9, the recorded graded population, not the number of copies printed.
How has the PSA 9 Koga's Koffing - 1st Edition Normal from Gym Challenge price moved recently?
Its TCGBerg fair value has risen 8.3% over the past 30 days.
What did a PSA 9 Koga's Koffing - 1st Edition Normal from Gym Challenge last sell for?
The most recent recorded sale was $40 on 2026-11-09. This recorded sale is separate from the model-derived fair value.