![Professor Oak [1999-2000] #88](/api/images/junkpal-products/cards/professor-oak-1999-2000-88-pokemon-base-set-card/img0/cover.webp)
Ungraded vs PSA 10 Professor Oak [1999-2000] #88: price difference
Professor Oak [1999-2000] #88 value — Ungraded $5 vs PSA 10 $112. PSA 10 sells for 22.4× Ungraded (+2140%). Prices updated July 2026.
Medians of real sold listings per grade, updated July 2026 — how we compute values.
PSA 10 sells for 22.4× (+2140%) the Ungraded price — a $107 difference per card.
Grade 9 sells for 5.2× (+420%) the Ungraded price — a $21 difference per card.
Should you get this card graded?
Grading runs about $30 per card all-in. On Professor Oak [1999-2000] #88, the jump from Ungraded to PSA 10 is worth $107 (22.4×) — if your copy grades at the top, that premium can cover the fee. A grade below the top one changes the math, so run your exact numbers first.
Run the grading break-even math →Values are estimates from real sales data — not appraisals or offers. Some links earn JunkPal a commission at no cost to you (disclosure).