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PSA 10: PriceCharting; last PSA 10 sale Jul 22, 2026
GemDelta shows Brock's Sandslash (Gym Challenge #36) at $8.27 market price (TCGplayer market). Its Delta multiple is 39.7x.
A PSA 10 Brock's Sandslash (Gym Challenge #36) is currently shown at $324. GemDelta labels this as an unverified PriceCharting guide fallback rather than verified recent sales.
GemDelta records a 26.4% gem rate for Brock's Sandslash (Gym Challenge #36), with 80 PSA 10 copies out of 303 total PSA grades and a 39.7x Delta. That describes the grading profile; it is not financial advice.
| Date | Sale |
|---|---|
| Jul 22, 2026 | $501.00 |
| Jun 8, 2026 | $323.99 |
| May 23, 2026 | $257.00 |