The current value of Professor Oak's New Theory (HeartGold & SoulSilver #101) is €0.20, updated July 27, 2026, based on the latest market floor tracked by RareBit.

HS · #101 · UNCOMMON

Professor Oak's New Theory

HeartGold & SoulSilver · Uncommon · illus. Ken Sugimori

ENNM

Current value · NM · EN

€0.20

Cardmarket EN · 107 observations

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7d avg

—

30d avg

—

90d high

€0.20

90d low

€0.05

About this card

Professor Oak's New Theory is a Trainer card from the HeartGold & SoulSilver set (HS #101). Its rarity is Uncommon. It was illustrated by Ken Sugimori.

Price history

7D30DAll

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CM Low NMTCGplayer USCM DECM FRCM ESCM IT

Pro analysisRead the full analysis

eBay Graded

eBay GradedAll PSA listings on eBay

• 10
  $52.22
• 9
  $18.78
• 7
  $3.39

Attributes

SetHeartGold & SoulSilver

Number#101

RarityUncommon

ArtistKen Sugimori

Languages—

SourcesPRICECHARTING · CARDMARKET · TCGPLAYER

Population & conditions

NEAR MINT · 60

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Prices updated Jul 27, 2026