Professor Oak #88 PSA 10: price & population
PSA 10
$129.99
Raw
$1.64
PSA 10 pop
293
Gem rate
24.3%
A PSA 10 Professor Oak #88 from Base Set sells for $129.99 — a 7,826% premium over the $1.64 raw price. PSA has graded this card 1,205 times; 293 came back a 10 (24.3% gem rate), and 492 a PSA 9.
The 9-to-10 spread
PSA 9 sells for $47.84. The jump from 9 to 10 is worth $82.15 — 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.
