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PSA 10: 45-day PSA 10 sold-comp median
GemDelta shows Brock's Graveler (Gym Challenge #34) at $4.55 market price (TCGplayer market). Its Delta multiple is 45.5x.
A PSA 10 Brock's Graveler (Gym Challenge #34) is currently shown at $338. GemDelta labels this as a 45-day PSA 10 sold-comp median.
GemDelta records a 30.4% gem rate for Brock's Graveler (Gym Challenge #34), with 95 PSA 10 copies out of 313 total PSA grades and a 45.5x Delta. That describes the grading profile; it is not financial advice.
| Date | Sale |
|---|---|
| Aug 17, 2026 | $325.00 |
| Aug 10, 2026 | $350.54 |
| Jun 7, 2026 | $248.09 |
| Jun 3, 2026 | $201.27 |
| May 30, 2026 | $314.99 |
| May 11, 2026 | $162.50 |
| May 7, 2026 | $160.00 |