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PSA 10: 45-day PSA 10 sold-comp median
GemDelta shows Professor Oak (Base Set #88) at $71.14 market price (TCGplayer market). Its Delta multiple is 60.3x.
A PSA 10 Professor Oak (Base Set #88) is currently shown at $1,700. GemDelta labels this as a 45-day PSA 10 sold-comp median.
GemDelta records a 11.6% gem rate for Professor Oak (Base Set #88), with 159 PSA 10 copies out of 1,369 total PSA grades and a 60.3x Delta. That describes the grading profile; it is not financial advice.
| Date | Sale |
|---|---|
| Jul 30, 2026 | $1300.00 |
| Jul 30, 2026 | $2100.00 |
| Jul 16, 2026 | $142.14 |
| Jul 10, 2026 | $2200.00 |
| May 16, 2026 | $1628.31 |
| May 11, 2026 | $1580.00 |
| Apr 15, 2026 | $1627.31 |
| Mar 24, 2026 | $2000.00 |
| Mar 22, 2026 | $2675.00 |
| Mar 4, 2026 | $1458.51 |