![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
$3400.00
Raw
$56.68
PSA 10 pop
66
Gem rate
4.9%
A PSA 10 Brock [1st Edition] #15 from Gym Heroes sells for $3400.00 — a 5,899% premium over the $56.68 raw price. PSA has graded this card 1,352 times; 66 came back a 10 (4.9% gem rate), and 522 a PSA 9.
The 9-to-10 spread
PSA 9 sells for $203.66. The jump from 9 to 10 is worth $3196.34 — 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.
