Pokémon TCG · HeartGold SoulSilverUncommon
Professor Oak's New Theory 101/123
Professor Oak's New Theory from HeartGold SoulSilver (HeartGold & SoulSilver), English edition. Daily market value by variant from Cardmarket.
Number101/123
RarityUncommon
LanguageEnglish
ReleasedFeb 10, 2010
IllustratorKen Sugimori
Market price · Normal
Price source: Cardmarket (via TCGdex API) · updated Oct 30, 2026
€0.30
▲ +57.9% vs 30-day avg
Lowest€0.02
7-day avg€0.20
30-day avg€0.19
Prices by variant
| Variant | Trend | Lowest | 30-day avg |
|---|---|---|---|
| Normal | €0.30 | €0.02 | €0.19 |
| Reverse holo | €0.30 | €0.02 | €0.19 |
| Normal · david · cohen | €8.99 | €9.99 | €8.99 |
| Normal · yuta · komatsuda | €1.99 | €1.99 | €1.99 |
| Normal · zachary · bokhari | €0.74 | €1.69 | €0.74 |
| Normal · christopher · kan | — | €1.80 | — |
| Normal · igor · costa | — | €6.95 | — |
| Normal · chase · moloney | — | €1.00 | — |
| Normal · shuto · itagaki | — | €2.49 | — |
| Normal · ross · cawthorn | — | €10.00 | — |
Price history
We record this card's price every day since Oct 29, 2026. The chart appears after a few days of data.
Card details
- Name
- Professor Oak's New Theory
- Type
- Trainer
- ID
- hgss1-101
