Rocket's Secret Experiment #120 PSA 10: price & population
PSA 10
$39.99
Raw
$4.49
PSA 10 pop
2
Gem rate
10.0%
A PSA 10 Rocket's Secret Experiment #120 from Gym Challenge sells for $39.99 — a 791% premium over the $4.49 raw price. PSA has graded this card 20 times; 2 came back a 10 (10.0% gem rate), and 8 a PSA 9.
The 9-to-10 spread
PSA 9 sells for $19.99. The jump from 9 to 10 is worth $20.00 — 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.
