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Koga's Grimer

Koga's Grimer

Gym Challenge · #78/132 · Common

Gym Challenge
HP

50

Type
Grass
Supertype

Pokémon

Artist

Ken Sugimori

Basic

Market Prices

View on TCGPlayer

Updated: 5/19/2026

1st Edition

Low

$2.39

Mid

$3.62

High

$36.90

Market

$3.75

unlimited

Low

$0.31

Mid

$1.00

High

$19.98

Market

$1.11

Market Signals

Updated 5 days ago

Raw NM

$1.31

PriceCharting Ungraded

PSA 10

$56.90

43.4× raw

CGC 10

—

TAG 10

—

PSA Population

57 total

20 at 10

Gem rate 35.1%

CGC Population

249 total

60 at 10

Gem rate 24.1%

TAG Population

229 total

38 at 10

BGS Population

1 total

0 at 10

Gem rate 0.0% low sample (n=1)

CGC full grade distribution

CGC · 0d

CGC 3.5

1

CGC 4.5

2

CGC 5.5

2

CGC 6

3

CGC 6.5

6

CGC 7

6

CGC 7.5

14

CGC 8

23

CGC 8.5

43

CGC 9

78

CGC 9.5

10

CGC 10

49

CGC 10 Pristine

11

CGC Auth

1

10 = Gem Mint 10. Real counts from CGC; grades with no copies are omitted.

Beckett (BGS) full grade distribution

BGS · 0d

BGS 6.5

1

10 = BGS 10, 10 Black = Black Label. Real counts from Beckett; grades with no copies are omitted.

Per-grade ladder

White = real market price. Blue = estimate (no real sale for that grade) — hover for how it was derived.

PSA

PSA 10

$56.90

CGC

CGC 10

$44.84

est.?

TAG · prices estimated; real TAG counts are in the distribution above

TAG 10

$47.34

est.?

Real prices from PriceCharting's per-grade table — its generic “Grade N” reflects PSA-graded sales. CGC / BGS / TAG sub-10 grades are estimated from this card's real PSA price at that grade × that grader's 10-to-PSA-10 ratio (this card's own real pair when available, else a ratio calibrated from real catalog cards in the same era and rarity). Grades with no real anchor and low-confidence estimates are omitted — a blank beats a bad number.

Grading ROI (PSA)

Value · $25.99

Realistic

$-6.48

using gem rate

If it 10s

$29.60

upside cap

Break-even

47%

gem rate needed

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Discovery Scores

Percentile-ranked 0–100 across the whole catalog. See this card in Rankings →

medium confidence
Value
87
Scarcity
15
Gem difficulty
28
Momentum
—
Grade ROI
49
Liquidity
—

Scored 2 hours ago

Price History

No price history available

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Card details — attacks, stats, Pokédex, evolution

Attacks

G
Sludge Grip

If your opponent has any Benched Pokémon, flip a coin. If heads, choose 1 of your opponent's Benched Pokémon and switch it with the Defending Pokémon. The new Defending Pokémon is now Poisoned.

GC
Sludge Toss
20

Weakness

Psychic ×2

Resistance

None

Retreat Cost

C

Pokédex Data

National Dex #

#88

Species

Sludge Pokémon

Types
poison
Height

0.9m

Weight

30.0kg

"Appears in filthy areas. Thrives by sucking up polluted sludge that is pumped out of factories."

Evolution Chain

grimer grimer
muk muk