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Koga's Grimer #78, Unlimited, Gym Challenge

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

A PSA 10 Koga's Grimer #78 Unlimited from Gym Challenge has a TCGBerg fair value of $144 as of Nov 14, 2026. It rests on 9 recorded sales, the latest on Jul 23, 2026. PSA has graded 20 copies at PSA 10. Sales evidence is sparse, so treat this value as a rough estimate.

TCGBerg fair valuePSA 10
As of Nov 14, 2026
$144up 22.3%30-day change

TCGBerg Algorithm (estimated from recorded sales).

9 sales · latest Jul 23, 2026

Fair value3 months
Last sale$57Jul 23, 202660.5% below fair
5-sale avg$70Dec 14Jul 23
Population · PSA 10
20
Market cap
$2.9K
Volatility
8.3%
YTD
↑ 149.1%
Sales evidence
Sparse

TCGBerg fair value · PSA 10

$144

30D22.3%YTD149.1%
Sales evidenceSparse

Based on 9 recorded sales. Latest sale: Jul 23, 2026.

Market cap
$2.9K
fair value x population
Population
20
graded copies
Last sale
$57
-60.5% vs fair
5-sale avg
$70
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 latest recorded PSA 10 sale ($57 on Jul 23, 2026) sits 60.5% below the $144 fair value, too far off to read as this grade's price. The value rests on 9 recorded PSA 10 sales. Its confidence band runs from $132 to $157. A PSA 10 ($144) is worth 3.8 times a PSA 9 ($38). Over the past 30 days the PSA 10 value has risen 22.3%. With sparse sales evidence, read the gap and the band as rough guides.

TCGBerg fair value by grade

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

  • Raw NM$0.96Ungraded · TCGBerg fair value
  • Raw LP$0.84Ungraded · TCGBerg fair value
  • Raw MP$0.69Ungraded · TCGBerg fair value
  • Raw HP$0.55Ungraded · TCGBerg fair value
  • Raw Damaged$0.38Ungraded · 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.

  • $1.47
    Nov 10, 2026 · via tcgplayer
    Rawabove fair value by 53.1%
  • $0.92
    Nov 10, 2026 · via tcgplayer
    Rawbelow fair value by 4.2%
  • $1.16
    Nov 3, 2026 · via tcgplayer
    Rawabove fair value by 23.4%
  • $1.98
    Nov 1, 2026 · via tcgplayer
    Rawabove fair value by 112.9%
  • $0.91
    Oct 30, 2026 · via tcgplayer
    Rawbelow fair value by 2.2%

15 more sales with Pro

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

Includes a sale 47.3% below fair value

All grades matrix

Every grade we track for this printing.

  • CGC6$8.40
    1d -7d -30d -
    Pop
    6
    Mcap
    -
    Evidence
    Sparse
    Last
    -
  • CGC Gem Mint 10$37
    1d 8.1%7d 8.1%30d 8.1%
    Pop
    35
    Mcap
    $1.3K
    Evidence
    Sparse
    Last
    $24
  • PSA10$144
    1d 0.0%7d 0.2%30d 22.3%
    Pop
    20
    Mcap
    $2.9K
    Evidence
    Sparse
    Last
    $57
Listings
CGC6$8.406----Sparse-
CGC Gem Mint 10$3735$1.3Kdown 8.1%down 8.1%down 8.1%Sparse$243mo ago
PSA10$14420$2.9Kup 0.2%up 22.3%up 63.7%Sparse$574mo ago
PSA9$3821$805up 0.4%up 31.7%up 63.7%Sparse$533w ago
PSA8$2211$238up 0.1%up 8.2%up 20.2%Moderate$162mo ago
PSA7$174$670.0%down 16.1%up 9.2%Sparse-
PSA6$163$490.0%down 13.4%up 18.9%Sparse-
PSA5$162-0.0%down 13.4%up 18.9%Sparse-
Raw$0.96--up 2.1%up 11.6%-Very strong$1.474d ago

Graded population report

343 graded copies of Koga's Grimer Unlimited across 25 grades.

PSA 10
20 · 5.8%
PSA 9
21 · 6.1%
PSA 8
11 · 3.2%
PSA 7
4 · 1.2%
PSA 6
3 · 0.9%
BGS 9.5
1 · 0.3%
CGC Pristine 10
6 · 1.7%
CGC Gem Mint 10
35 · 10%
CGC 9.5
8 · 2.3%
CGC 9
41 · 12%
CGC 8.5
62 · 18%
CGC 8
50 · 15%
CGC 7.5
28 · 8.2%
CGC 7
22 · 6.4%
CGC 6.5
11 · 3.2%
CGC 6
6 · 1.7%
CGC 5.5
1 · 0.3%
CGC 5
4 · 1.2%
CGC 4.5
1 · 0.3%
CGC 4
1 · 0.3%
CGC 3
1 · 0.3%
BGS 6.5
1 · 0.3%
CGC Authentic
2 · 0.6%
PSA 5
2 · 0.6%
PSA 1
1 · 0.3%

PSA 10 makes up 5.8% of graded copies: 20 of 343. One of the scarcer grades for this card. CGC 8.5 is the most common grade (18%).

Analysis

Koga's Grimer - Unlimited at PSA 10 carries a TCGBerg fair value of $144 as of 2026-11-14. We track a TCGBerg fair value across 8 grades from Gym Challenge, from CGC 6 up to PSA 10. A graded population of 20 copies sits behind the PSA 10 grade. The PSA 10 valuation rests on sparse sales evidence. Over the past 30 days, the PSA 10 TCGBerg fair value has risen 22.3%.

PSA 10 - frequently asked

How much is a PSA 10 Koga's Grimer - Unlimited from Gym Challenge worth?
$144 as of 2026-11-14, the model-derived TCGBerg fair value for a PSA 10 Koga's Grimer - Unlimited from Gym Challenge. It rests on sparse sales evidence. This estimate is not a guaranteed sale price.
What is the graded population of a PSA 10 Koga's Grimer - Unlimited from Gym Challenge?
20 copies have been graded at PSA 10, the recorded graded population, not the number of copies printed.
How has the PSA 10 Koga's Grimer - Unlimited from Gym Challenge price moved recently?
Its TCGBerg fair value has risen 22.3% over the past 30 days.