Koga's Grimer [1st Edition] #78

Gym Challenge

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Koga's Grimer [1st Edition] #78 PSA 10: price & population

PSA 10

$122.50

Raw

$4.12

PSA 10 pop

160

Gem rate

35.4%

A PSA 10 Koga's Grimer [1st Edition] #78 from Gym Challenge sells for $122.50 — a 2,873% premium over the $4.12 raw price. PSA has graded this card 452 times; 160 came back a 10 (35.4% gem rate), and 226 a PSA 9.

The 9-to-10 spread

PSA 9 sells for $36.00. The jump from 9 to 10 is worth $86.50 — that spread, times your real odds of the 10, is what decides whether grading pays.

Run this card's full grading math →

Prices from real completed sales, updated daily. Population data from PSA's public population report.