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MarketsHeartGold SoulSilverProfessor Oak’s New Theory

Professor Oak’s New Theory

#101/123

HeartGold SoulSilver · HeartGold & SoulSilver · Released Feb 10, 2010

$0.83

Market price · Raw NM · Normal · as of Aug 26, 2026

Condition and grade

Professor Oak’s New Theory

Normal · English · Illus. Ken Sugimori

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Card details

Printed number101/123
Set total124 cards
RarityU
SeriesHeartGold & SoulSilver
IllustratorKen Sugimori
Market variantnormal
ReleasedFeb 10, 2010
Gameplay
Type-
StageSupporter
HP0
Retreat-
Weakness-
Resistance-
Regulation-
National Dex-

Price history: Normal · Raw NM

+$0.10 (13.70%)past year

Price history for Raw NM, 1Y window: from $0.73 on Aug 26, 2025 to $0.83 on Aug 26, 2026, across 166 points.

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1Y

Recent sales

Normal

4 sales on record · Normal · latest May 10, 2026

Table shows the last 3, Nov 16, 2025 to May 10, 2026

No Raw (NM/ungraded) comps found; showing all grades for Normal.
  • May 10, 2026$999.95
    PSA 10ebay
    Pokemon PSA 10 Professor Oak's New Theory 101/123 Professor Program Promo S#2609
  • Mar 8, 2026$3.39
    PSA 7ebay
    2010 POKEMON HEARTGOLD & SOULSILVER #101 PROFESSOR OAK'S NEW THEORY PSA 7
  • Nov 16, 2025$25.00
    PSA 9ebay
    2010 Pokemon Heartgold Soulsilver Professor Oak's New Theory #101 PSA 9
GradeMarketplaceListing
May 10, 2026$999.95PSA 10ebayPokemon PSA 10 Professor Oak's New Theory 101/123 Professor Program Promo S#2609
Mar 8, 2026$3.39PSA 7ebay2010 POKEMON HEARTGOLD & SOULSILVER #101 PROFESSOR OAK'S NEW THEORY PSA 7
Nov 16, 2025$25.00PSA 9ebay2010 Pokemon Heartgold Soulsilver Professor Oak's New Theory #101 PSA 9

Showing 1-3 of 3 sales

Rows

Past performance is not indicative of future results.

$1.00$0.90$0.80$0.70Aug '25Nov '25Feb '26May '26Aug '26

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