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Koga's Grimer #78, 1st Edition, Gym Challenge

  • Card number: #78/132
  • Rarity: Common
  • Finish: Non-Holo

A PSA 9 Koga's Grimer #78 1st Edition from Gym Challenge has a TCGBerg fair value of $45 as of Nov 15, 2026. TCGBerg has recorded 16 PSA 9 sales of this card, the latest on Oct 19, 2026. PSA has graded 230 copies at PSA 9.

TCGBerg fair valuePSA 9
As of Nov 15, 2026
$45up 18.9%30-day change

TCGBerg Algorithm (estimated from recorded sales).

Fair value3 months
Last sale$50Oct 19, 202610.4% above fair
5-sale avg$39Jun 23Oct 19
Population · PSA 9
230
Market cap
$10.4K
Volatility
4.5%
YTD
↑ 40.4%
Sales evidence
Strong

TCGBerg fair value · PSA 9

$45

30D18.9%YTD40.4%
Sales evidenceStrong
Market cap
$10.4K
fair value x population
Population
230
graded copies
Last sale
$50
+10.4% 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, $50 on Oct 19, 2026, sits 10.4% above the $45 fair value. The value weighs 16 PSA 9 sales from the past year, not the latest one alone. Its confidence band runs from $43 to $48. A PSA 10 ($241) is worth 5.3 times a PSA 9 ($45). Over the past 30 days the PSA 9 value has risen 18.9%.

TCGBerg fair value by grade

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

  • Raw NM$4.26Ungraded · TCGBerg fair value
  • Raw LP$3.01Ungraded · TCGBerg fair value
  • Raw MP$2.03Ungraded · TCGBerg fair value
  • Raw HP$1.94Ungraded · TCGBerg fair value
  • Raw Damaged$1.47Ungraded · 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.

  • $240
    Nov 11, 2026 · via eBay
    PSA10below fair value by 0.3%
  • $28
    Nov 4, 2026 · via eBay
    PSA8below fair value by 7.0%
  • $16
    Nov 2, 2026 · via Fanatics Collect
    CGC9.5above fair value by 3.6%
  • $31
    Nov 2, 2026 · via Fanatics Collect
    CGC Gem Mint 10below fair value by 31.7%
  • $3.47
    Oct 30, 2026 · via tcgplayer
    Rawbelow fair value by 16.6%

15 more sales with Pro

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

Includes a sale 21.6% below fair value

All grades matrix

Every grade we track for this printing.

  • CGC6$19
    1d -7d -30d -
    Pop
    3
    Mcap
    -
    Evidence
    Sparse
    Last
    -
  • CGC Gem Mint 10$32
    1d 29.7%7d 29.7%30d 29.7%
    Pop
    50
    Mcap
    $1.6K
    Evidence
    Strong
    Last
    $31
  • CGC9.5$16
    1d 5.2%7d 5.2%30d 5.2%
    Pop
    15
    Mcap
    $238
    Evidence
    Strong
    Last
    $16
Listings
CGC6$193----Sparse-
CGC Gem Mint 10$3250$1.6Kdown 29.7%down 29.7%down 29.7%Strong$312w ago
CGC9.5$1615$238up 5.2%up 5.2%up 5.2%Strong$162w ago
PSA10$241160$38.5Kup 0.9%up 9.2%up 62.4%Limited$2404d ago
PSA9$45230$10.4Kup 3.5%up 18.9%up 18.7%Strong$504w ago
PSA8$2956$1.6Kdown 2.5%up 1.6%up 10.6%Strong$282w ago
PSA7$2211$242up 0.3%up 3.5%down 6.7%Moderate$201mo ago
PSA6$224$870.0%up 9.6%up 4.4%Sparse-
PSA5$204-0.0%down 0.8%down 5.4%Sparse-
Raw$4.26--up 1.9%down 4.3%-Very strong$3.472w ago

Graded population report

754 graded copies of Koga's Grimer 1st Edition across 23 grades.

PSA 10
160 · 21%
PSA 9
230 · 31%
PSA 8
56 · 7.4%
PSA 7
11 · 1.5%
PSA 6
4 · 0.5%
BGS 9.5
5 · 0.7%
BGS 9
10 · 1.3%
CGC Pristine 10
11 · 1.5%
CGC Gem Mint 10
50 · 6.6%
CGC 9.5
15 · 2.0%
CGC 9
86 · 11%
CGC 8.5
47 · 6.2%
CGC 8
28 · 3.7%
CGC 7.5
14 · 1.9%
CGC 7
7 · 0.9%
CGC 6.5
6 · 0.8%
CGC 6
3 · 0.4%
CGC 5.5
2 · 0.3%
CGC 4.5
2 · 0.3%
CGC 3.5
1 · 0.1%
CGC Authentic
1 · 0.1%
PSA 5
4 · 0.5%
PSA 3
1 · 0.1%

PSA 9 makes up 31% of graded copies: 230 of 754. It’s the most common grade for this card.

Analysis

Koga's Grimer - 1st Edition Normal at PSA 10 carries a TCGBerg fair value of $241 as of 2026-11-14. We track a TCGBerg fair value across 9 grades from Gym Challenge, from CGC 9.5 up to PSA 10. A graded population of 160 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 risen 9.2%.

PSA 9 - frequently asked

How much is a PSA 9 Koga's Grimer - 1st Edition Normal from Gym Challenge worth?
$45 as of 2026-11-14, the model-derived TCGBerg fair value for a PSA 9 Koga's Grimer - 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 9 Koga's Grimer - 1st Edition Normal from Gym Challenge?
230 copies have been graded at PSA 9, the recorded graded population, not the number of copies printed.
How has the PSA 9 Koga's Grimer - 1st Edition Normal from Gym Challenge price moved recently?
Its TCGBerg fair value has risen 18.9% over the past 30 days.
What did a PSA 9 Koga's Grimer - 1st Edition Normal from Gym Challenge last sell for?
The most recent recorded sale was $50 on 2026-10-19. This recorded sale is separate from the model-derived fair value.