![Brock [1st Edition] #15 from Pokemon Gym Heroes](https://images.pokemontcg.io/gym1/15.png)
Brock [1st Edition] #15 PSA 10: price & population
PSA 10
$4000.50
Raw
$61.63
PSA 10 pop
66
Gem rate
4.9%
A PSA 10 Brock [1st Edition] #15 from Gym Heroes sells for $4000.50 — a 6,391% premium over the $61.63 raw price. PSA has graded this card 1,336 times; 66 came back a 10 (4.9% gem rate), and 518 a PSA 9.
The 9-to-10 spread
PSA 9 sells for $194.75. The jump from 9 to 10 is worth $3805.75 — that spread, times your real odds of the 10, is what decides whether grading pays.
Prices from real completed sales, updated daily. Population data from PSA's public population report.
