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Koga's Arbok #25, 1st Edition, Gym Challenge

  • Card number: #25/132
  • Rarity: Rare
  • Finish: Non-Holo

A PSA 10 Koga's Arbok #25 1st Edition from Gym Challenge has a TCGBerg fair value of $304 as of Nov 14, 2026. TCGBerg has recorded 26 PSA 10 sales of this card, the latest on Oct 31, 2026. PSA has graded 127 copies at PSA 10.

TCGBerg fair valuePSA 10
As of Nov 14, 2026
$304up 7.2%30-day change

TCGBerg Algorithm (estimated from recorded sales).

Fair value3 months
Last sale$355Oct 31, 202616.8% above fair
5-sale avg$296Sep 25Oct 31
Population · PSA 10
127
Market cap
$38.6K
Volatility
3.6%
YTD
↑ 76.6%
Sales evidence
Strong

TCGBerg fair value · PSA 10

$304

30D7.2%YTD76.6%
Sales evidenceStrong
Market cap
$38.6K
fair value x population
Population
127
graded copies
Last sale
$355
+16.8% vs fair
5-sale avg
$296
recent sales
Grading

Price history

Open terminalPro

Weekly fair value for PSA 10.

Open in TerminalCandles, every grade, full historyPro

What the evidence says

The last PSA 10 sale, $355 on Oct 31, 2026, sits 16.8% above the $304 fair value. The value weighs 26 PSA 10 sales from the past year, not the latest one alone. The latest sale ran above the recent run: the last 5 PSA 10 sales averaged $296, within 2.5% of the value. Its confidence band runs from $292 to $316. A PSA 10 ($304) is worth 5.9 times a PSA 9 ($51). Over the past 30 days the PSA 10 value has risen 7.2%.

TCGBerg fair value by grade

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

  • Raw NM$18Ungraded · TCGBerg fair value
  • Raw LP$11Ungraded · TCGBerg fair value
  • Raw MP$7.76Ungraded · TCGBerg fair value
  • Raw HP$5.91Ungraded · market price
  • Raw Damaged$5.29Ungraded · 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.

  • $30
    Nov 10, 2026 · via eBay
    PSA8below fair value by 24.9%
  • $355
    Oct 31, 2026 · via eBay
    PSA10above fair value by 17.5%
  • $48
    Oct 29, 2026 · via eBay
    PSA8above fair value by 22.6%
  • $16
    Oct 28, 2026 · via tcgplayer
    Rawbelow fair value by 9.7%
  • $280
    Oct 27, 2026 · via eBay
    PSA10below fair value by 7.4%

15 more sales with Pro

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

Includes a sale 16.1% below fair value

All grades matrix

Every grade we track for this printing.

  • CGC6$9.63
    1d -7d -30d -
    Pop
    1
    Mcap
    -
    Evidence
    Sparse
    Last
    -
  • CGC Pristine 10$130
    1d -7d -30d -
    Pop
    3
    Mcap
    $391
    Evidence
    Sparse
    Last
    $120
  • CGC Gem Mint 10$33
    1d 26.2%7d 26.2%30d 26.2%
    Pop
    34
    Mcap
    $1.1K
    Evidence
    Sparse
    Last
    $36
Listings
CGC6$9.631----Sparse-
CGC Pristine 10$1303$391---Sparse$1202mo ago
CGC Gem Mint 10$3334$1.1Kdown 26.2%down 26.2%down 26.2%Sparse$366mo ago
PSA10$304127$38.6Kup 0.2%up 7.2%up 39.7%Strong$3552w ago
PSA9$51172$8.8Kup 4.0%up 5.8%up 15.4%Strong$451mo ago
PSA8$4061$2.4Kdown 0.7%down 5.8%down 6.9%Strong$304d ago
PSA7$2918$525down 0.3%down 1.4%up 40.4%Limited$402mo ago
PSA6$294$1150.0%up 2.5%up 42.2%Sparse-
PSA5$292-0.0%up 2.5%up 42.2%Sparse-
Raw$18--up 0.1%down 4.4%-Very strong$162w ago

Graded population report

527 graded copies of Koga's Arbok 1st Edition across 26 grades.

PSA 10
127 · 24%
PSA 9
172 · 33%
PSA 8
61 · 12%
PSA 7
18 · 3.4%
PSA 6
4 · 0.8%
BGS 9.5
2 · 0.4%
BGS 9
1 · 0.2%
CGC Pristine 10
3 · 0.6%
CGC Gem Mint 10
34 · 6.5%
CGC 9.5
5 · 0.9%
CGC 9
39 · 7.4%
CGC 8.5
27 · 5.1%
CGC 8
14 · 2.7%
CGC 7.5
6 · 1.1%
CGC 7
1 · 0.2%
CGC 6.5
1 · 0.2%
CGC 6
1 · 0.2%
CGC 5.5
1 · 0.2%
CGC 4.5
1 · 0.2%
BGS 8.5
1 · 0.2%
BGS 8
1 · 0.2%
BGS 7.5
2 · 0.4%
BGS 6.5
1 · 0.2%
CGC Authentic
1 · 0.2%
PSA 8.5
1 · 0.2%
PSA 5
2 · 0.4%

PSA 10 makes up 24% of graded copies: 127 of 527. PSA 9 is the most common grade (33%).

Analysis

Koga's Arbok - 1st Edition Normal at PSA 10 carries a TCGBerg fair value of $304 as of 2026-11-14. We track a TCGBerg fair value across 9 grades from Gym Challenge, from CGC 6 up to PSA 10. A graded population of 127 copies sits behind the PSA 10 grade. The PSA 10 valuation rests on strong sales evidence. Over the past 30 days, the PSA 10 TCGBerg fair value has risen 7.2%.

PSA 10 - frequently asked

How much is a PSA 10 Koga's Arbok - 1st Edition Normal from Gym Challenge worth?
$304 as of 2026-11-14, the model-derived TCGBerg fair value for a PSA 10 Koga's Arbok - 1st Edition Normal from Gym Challenge. It rests on strong sales evidence. This estimate is not a guaranteed sale price.
What is the graded population of a PSA 10 Koga's Arbok - 1st Edition Normal from Gym Challenge?
127 copies have been graded at PSA 10, the recorded graded population, not the number of copies printed.
How has the PSA 10 Koga's Arbok - 1st Edition Normal from Gym Challenge price moved recently?
Its TCGBerg fair value has risen 7.2% over the past 30 days.
What did a PSA 10 Koga's Arbok - 1st Edition Normal from Gym Challenge last sell for?
The most recent recorded sale was $355 on 2026-10-31. This recorded sale is separate from the model-derived fair value.