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Sets/hgss1/Professor Oak's New Theory

Professor Oak's New Theory

TrainerSupporterUncommon

Set: hgss1 · #101

Artist: Ken Sugimori

Professor Oak's New Theory

Grading ROI & Alerts

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Professor Oak's New Theory is a uncommon card from hgss1 (#101). It was illustrated by Ken Sugimori.

Recent raw sales average $1.47. Below you'll find the full sold-listing history, PSA population data, and a grading ROI breakdown showing what each PSA grade is worth versus a raw copy.

Updated 10h ago

$1.47Raw Market PriceAverage of the last 5 raw sold listings on eBay and TCGplayer

Avg Last 5 Sold

$2.04

eBay Raw

$0.89

TCGplayer Raw

Source
Variant
Grader
Grade
TitlePriceVariantGraderGradeSold
Professor Oak's New Theory 101/123 Reverse Holo HG/SS MP$2.50 USDRaw--5/21/2026
Pokemon TCG HeartGold SoulSilver Professor Oak's New Theory 101/123 LP$1.00 USDRaw--5/18/2026
Professor Oak's New Theory 101/123 HGSS Pokemon Card NM$3.03 USDRaw--5/10/2026
Pokémon TCG Professor Oak's New Theory Heartgold Soulsilver 101/123 MP/HP$1.66 USDRaw--5/6/2026

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