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Grade Matrix

Graded
PSA 6
$12
Grade 7 guide
$35
Grade 8 guide
$36
PSA 9
$92
PSA 10
$300

PSA 10: Median of 2 sales, last 45 days · newest Oct 6, 2026 · checked Oct 26, 2026

PSA 9: Median of 7 PSA 9 sales in the last 90 days, latest 2026-10-19. Grade 9 guide (all graders): $66.

Grade 7 and Grade 8 are PriceCharting guides across all graders (PSA, CGC, BGS, SGC, TAG).

CGC
CGC 8
$30
CGC 9
-
CGC 10
$76
CGC P10
-

Availability

Availabilityi
1/10G: 12/y
Graded: ~12 sales/yr (low) · Sales per year: ~122 sales/yr · Recent sales: 4 PSA 10 comps · Raw recent sales: 60 · Grade 9 recent sales: 30 · PSA 10 recent sales: 30 · Graded copies: 609 · PSA-10 delta 4.9%

TCGplayer Price History

NormalProduct 107085
No Normal price series for this product. Available: 1st Edition, Unlimited.

Card Value FAQ

How much is Professor Oak (Base Set #88) worth?

GemDelta shows Professor Oak (Base Set #88) at $4.06 market price (PriceCharting raw (eBay sold fallback)). Its Delta multiple is 73.9x.

How much is a PSA 10 Professor Oak (Base Set #88) worth?

A PSA 10 Professor Oak (Base Set #88) is currently shown at $300, the median of 2 PSA 10 sales in the last 45 days (newest Oct 6, 2026).

Is Professor Oak (Base Set #88) worth grading?

GemDelta records a 25.6% gem rate for Professor Oak (Base Set #88), with 156 PSA 10 copies out of 609 total PSA grades and a 73.9x Delta. That describes the grading profile; it is not financial advice.

PSA 10 Recent sales

DateListingSale
Oct 6, 20261999 Pokemon TCG Professor Oak Base Set Shadowless 88/102 PSA Gem Mint 10 88/102$400.00
Sep 26, 2026PSA 10 GEM MINT 1999 Pokemon TCG Professor Oak 88/102 Base Set Shadowless 088/102$199.99
Aug 7, 20261999 POKEMON BASE SET SHADOWLESS #88 PROFESSOR OAK PSA 10 #88$190.00
Jul 27, 20261999 POKEMON BASE SET SHADOWLESS #88 PROFESSOR OAK PSA 10 #88$210.00
Jul 5, 2026Pokemon Professor Oak Base Set 88/102 Shadowless PSA 10 88/102$169.19
Jul 3, 20261999 Pokemon TCG Professor Oak Base Set Shadowless 88/102 PSA Gem Mint 10$230.00
Jun 17, 20261999 Pokemon TCG Professor Oak Base Set Shadowless 88/102 PSA 10 English 088/102$227.50
May 22, 2026PSA 10 - Pokemon PROFESSOR OAK 88/102 - SHADOWLESS BASE SET Trainer - GEM MINT 88/102$465.00
May 18, 20261999 Pokemon TCG Professor Oak Base Set Shadowless 88/102 PSA Gem Mint 10$250.00
May 17, 20261999 POKEMON GAME BASE SET 88 PROFESSOR OAK SHADOWLESS PSA 10 GEM MINT #88$289.99