Koga's Grimer - 1st Edition Normal, Gym Challenge

tcgberg

Pichu HoloNEOPSA 9$4871.0%

Feraligatr HoloNEOPSA 9$3300.7%

Lugia HoloNEOPSA 9$2,7011.1%

Dark Charizard 1st EditionROKPSA 8$1,4430.1%

Sabrina's Gengar HoloGYMPSA 8$7441.0%

Charizard ex HoloMEWPSA 10$1,6471.0%

Erika's Clefable 1st EditionGYMPSA 10$3,2130.7%

Togetic HoloNEOPSA 7$440.0%

Heracross HoloNEOPSA 9$1130.0%

Steelix HoloNEOPSA 10$4320.0%

Charmeleon HoloMEWPSA 10$5250.0%

Wartortle HoloMEWPSA 10$4140.4%

Dark Weezing 1st EditionROKPSA 10$9510.0%

Meganium HoloNEOPSA 9$2230.0%

Machamp 1st Edition ShadowlessBASPSA 8$1213.3%

Alakazam ex HoloMEWPSA 10$3642.6%

Raichu UnlimitedBASPSA 9$3443.2%

Slowking HoloNEOPSA 7$966.3%

Dark Hypno 1st EditionROKPSA 9$2230.1%

Clefairy UnlimitedBASPSA 9$2382.6%

Nidoking UnlimitedBASPSA 7$541.3%

Charizard UnlimitedBASPSA 9$3,3700.2%

Venusaur UnlimitedBASPSA 7$2001.2%

Machoke HoloMEWPSA 9$380.2%

Snorlax HoloJUNPSA 8$2911.9%

Kingdra HoloNEOPSA 7$355.7%

Gyarados UnlimitedBASPSA 6$460.9%

Moltres UnlimitedFOSPSA 10$35511.0%

Ivysaur UnlimitedBASPSA 8$462.3%

Mewtwo UnlimitedBASPSA 8$1680.5%

Gengar HoloMEWPSA 10$2550.1%

Kangaskhan HoloJUNPSA 9$941.9%

Blastoise ex HoloMEWPSA 9$1655.5%

Dark Charizard HoloROKPSA 6$2740.5%

Mew ex HoloMEWPSA 9$610.8%

Jolteon HoloJUNPSA 8$12411.9%

Gust of Wind UnlimitedBASPSA 9$380.2%

Slowpoke 1st EditionFOSPSA 9$473.2%

Aerodactyl HoloFOSPSA 9$14410.1%

Electabuzz UnlimitedBASPSA 8$320.0%

Gengar HoloFOSPSA 6$1511.9%

Psyduck HoloMEWPSA 8$604.6%

Bulbasaur UnlimitedBASPSA 9$530.9%

Dratini Reverse HoloLGCPSA 6$18077.0%

Giovanni's Machamp 1st EditionGYCPSA 10$1,973233.4%

Dark Slowbro HoloROKPSA 10$992220.3%

Muk Reverse HoloLGCPSA 10$1,223219.2%

Dark Porygon2 1st EditionNDEPSA 10$5,124187.1%

Koga's Ditto 1st EditionGYCPSA 9$35482.0%

Nidoking Reverse HoloLGCPSA 9$1,02978.6%

Koga's Grimer - 1st Edition Normal, Gym Challenge | TCGBerg

All grades matrix

Every grade we track for this printing. Click any column header to sort; the rightmost column jumps you to listings for that grade.

PSA10$116
1d 0.0%7d 0.3%30d 5.0%
Pop
160
Mcap
$18.6K
Conf
67
Last
$100
PSA9$33
1d 0.0%7d 0.0%30d 7.6%
Pop
226
Mcap
$7.6K
Conf
79
Last
$40
PSA8$25
1d 0.0%7d 0.0%30d 20.6%
Pop
48
Mcap
$1.2K
Conf
63
Last
$28


PSA10	$116	160	$18.6K	0.0%	0.3%	5.0%	38.4%	—	67	$1004w ago
PSA9	$33	226	$7.6K	0.0%	0.0%	7.6%	13.7%	—	79	$401w ago
PSA8	$25	48	$1.2K	0.0%	0.0%	20.6%	25.1%	—	63	$282w ago
PSA7	$19	7	$135	0.0%	0.0%	0.2%	71.3%	—	43	$241mo ago
Raw	$4	—	—	0.0%	1.3%	1.1%	9.3%	—	—	—

Recent sales

Most recent transactions. From public auction comps and dealer reporting. Showing 10 of 20; delta vs fair value is the difference between the sale price and the grade's quoted fair value on that date.

Date	Grade	Price	Source	vs TCGBerg FV
May 23, 2026	PSA10	$100	ebay	14.1%
May 18, 2026	PSA10	$158	ebay	35.3%
Apr 16, 2026	PSA10	$179	ebay	88.9%
Mar 30, 2026	PSA10	$123	ebay	28.1%
Mar 16, 2026	PSA10	$92	ebay	9.7%
Jan 11, 2026	PSA10	$80	ebay	7.9%
Jan 7, 2026	PSA10	$128	ebay	71.9%
Jan 2, 2026	PSA10	$74	ebay	0.2%
Dec 15, 2025	PSA10	$63	ebay	14.8%
Dec 14, 2025	PSA10	$106	ebay	46.7%

May 23, 2026PSA10
$10014.1%
via ebay
May 18, 2026PSA10
$15835.3%
via ebay
Apr 16, 2026PSA10
$17988.9%
via ebay

Analysis

Koga's Grimer - 1st Edition Normal at PSA 10 carries a TCGBerg fair value of $116 as of 2026-06-21. We track a TCGBerg fair value across 4 grades from Gym Challenge, from PSA 7 up to PSA 10. A graded population of 160 copies sits behind the PSA 10 grade. The PSA 10 valuation carries high confidence (a confidence score of 67). Over the past 30 days, the PSA 8 TCGBerg fair value has risen 20.6%.

Show more analysis

PSA 10 commentary

The TCGBerg fair value of a PSA 10 Koga's Grimer - 1st Edition Normal is $116 as of 2026-06-21. 160 copies have been graded at this level. This valuation carries high confidence (a confidence score of 67). Over the past 30 days the TCGBerg fair value has fallen 5.0%. The most recent recorded sale was $100 on 2026-05-23.

PSA 10 — frequently asked

What is the TCGBerg fair value of a PSA 10 Koga's Grimer - 1st Edition Normal?

$116 as of 2026-06-21, our model-derived fair value for a PSA 10 Koga's Grimer - 1st Edition Normal based on recent graded sales.

How rare is a PSA 10 Koga's Grimer - 1st Edition Normal?

160 copies have been graded at PSA 10, the graded population behind this atom.

How has the PSA 10 Koga's Grimer - 1st Edition Normal price moved recently?

Its TCGBerg fair value has fallen 5.0% over the past 30 days.

PSA 9 commentary

The TCGBerg fair value of a PSA 9 Koga's Grimer - 1st Edition Normal is $33 as of 2026-06-21. 226 copies have been graded at this level. This valuation carries high confidence (a confidence score of 79). Over the past 30 days the TCGBerg fair value has risen 7.6%. The most recent recorded sale was $40 on 2026-06-13.

PSA 9 — frequently asked

What is the TCGBerg fair value of a PSA 9 Koga's Grimer - 1st Edition Normal?

$33 as of 2026-06-21, our model-derived fair value for a PSA 9 Koga's Grimer - 1st Edition Normal based on recent graded sales.

How rare is a PSA 9 Koga's Grimer - 1st Edition Normal?

226 copies have been graded at PSA 9, the graded population behind this atom.

How has the PSA 9 Koga's Grimer - 1st Edition Normal price moved recently?

Its TCGBerg fair value has risen 7.6% over the past 30 days.

PSA 8 commentary

The TCGBerg fair value of a PSA 8 Koga's Grimer - 1st Edition Normal is $25 as of 2026-06-21. 48 copies have been graded at this level. This valuation carries high confidence (a confidence score of 63). Over the past 30 days the TCGBerg fair value has risen 20.6%. The most recent recorded sale was $28 on 2026-06-05.

PSA 8 — frequently asked

What is the TCGBerg fair value of a PSA 8 Koga's Grimer - 1st Edition Normal?

$25 as of 2026-06-21, our model-derived fair value for a PSA 8 Koga's Grimer - 1st Edition Normal based on recent graded sales.

How rare is a PSA 8 Koga's Grimer - 1st Edition Normal?

48 copies have been graded at PSA 8, the graded population behind this atom.

How has the PSA 8 Koga's Grimer - 1st Edition Normal price moved recently?

Its TCGBerg fair value has risen 20.6% over the past 30 days.

PSA 7 commentary

The TCGBerg fair value of a PSA 7 Koga's Grimer - 1st Edition Normal is $19 as of 2026-06-21. 7 copies have been graded at this level. This valuation carries medium confidence (a confidence score of 43). Over the past 30 days the TCGBerg fair value has fallen 0.2%. The most recent recorded sale was $24 on 2026-05-11.

PSA 7 — frequently asked

What is the TCGBerg fair value of a PSA 7 Koga's Grimer - 1st Edition Normal?

$19 as of 2026-06-21, our model-derived fair value for a PSA 7 Koga's Grimer - 1st Edition Normal based on recent graded sales.

How rare is a PSA 7 Koga's Grimer - 1st Edition Normal?

7 copies have been graded at PSA 7, the graded population behind this atom.

How has the PSA 7 Koga's Grimer - 1st Edition Normal price moved recently?

Its TCGBerg fair value has fallen 0.2% over the past 30 days.

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

Price history

Price spectrum

TCGBerg fair value by grade

All grades matrix

Active listings on eBay

About Gym Challenge

Recent sales

Population & rarity

Relative valuation vs. index

Analysis

PSA 10 commentary

PSA 10 — frequently asked

PSA 9 commentary

PSA 9 — frequently asked

PSA 8 commentary

PSA 8 — frequently asked

PSA 7 commentary

PSA 7 — frequently asked

Other printings of Koga's Grimer

Indices containing this card

Parent set

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

Price spectrum

TCGBerg fair value by gradeSide-by-side comparison of fair value across every grade we track for this printing. The bar chart uses a log scale so raw and gem-mint fit on one axis.

All grades matrix

Active listings on eBayLive asking prices from eBay sellers. The delta shows how each ask compares to TCGBerg's quoted fair value for that grade. Verified deals are marked from the published analytics feed.

About Gym Challenge

Recent sales

Population & rarityHow Koga's Grimer's graded copies are spread across grades. Each bar is the number of copies graded at that grade; the percentage is that grade's share of the total graded population. Fewer copies at a grade = scarcer = a scarcity premium.

Relative valuation vs. indexBoth series are indexed to 100 at May 10, 2026, the index’s inception date, not the start of the selected range. A divergence means the card has outperformed or underperformed the index since then, by exactly the percentage-point gap.

Analysis

PSA 10 commentary

PSA 10 — frequently asked

PSA 9 commentary

PSA 9 — frequently asked

PSA 8 commentary

PSA 8 — frequently asked

PSA 7 commentary

PSA 7 — frequently asked

Related

Other printings of Koga's Grimer

Indices containing this card

Parent set

TCGBerg fair value by grade

Active listings on eBay

Population & rarity

Relative valuation vs. index