Professor Oak's New Theory HeartGold & SoulSilver #101
Sold prices, not asking · Updated 5 July 2026
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Professor Oak's New Theory is a Uncommon Pokémon card from HeartGold & SoulSilver (#101), illustrated by Ken Sugimori. It's a Supporter Trainer card. Its current blended market value is $6.92 ungraded. Prices are aggregated across marketplaces — raw and graded, updated daily and shown in your local currency.
Prices last updated 5 July 2026.
Price by variant
TCGplayer market price per printing — reverse holo, 1st edition and unlimited often differ sharply.
| Grade | Relative value | Price |
|---|---|---|
| CGC 8.5pop 15 | $24$24–$24 |
Price history · Raw
Recent sold prices
No recent sold listings tracked.
Population across graders
Only 0% of 3 PSA-graded Professor Oak's New Theory copies are a gem-mint 10 (0 of 3) — the rest grade lower.
Full grade breakdown (2 grades)
Full grade breakdown (5 grades)
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Where to buy
Market dataCross-market spread, EU price, momentum & community buzz
Cross-market prices
0% spreadCurrently 0% cheaper on TCGplayer than PriceCharting. These are independent market prices for the same card — a wide gap can mean a buying opportunity. Informational only, not arbitrage advice.
Market signal
Derived from this card's 90-day price history, recent trend and cross-market price gap. Informational, not advice.
Card text
You can play only one Supporter card each turn. When you play this card, put it next to your Active Pokémon. When your turn ends, discard this card.
Shuffle your hand into your deck. Then, draw 6 cards.
Card details
Other Professor Oak's New Theory cards
There are 2 different Professor Oak's New Theory printings — make sure you're valuing the right one. This is HeartGold & SoulSilver #101 (Uncommon).
More from HeartGold & SoulSilver
Frequently asked questions
How much is Professor Oak's New Theory (HeartGold & SoulSilver #101) worth?
As of 5 July 2026, Professor Oak's New Theory from HeartGold & SoulSilver is worth approximately $6.92 ungraded (near-mint). Values are blended from real Cardmarket, eBay sold and TCGplayer prices and update daily.
Is Professor Oak's New Theory rare?
Professor Oak's New Theory is a Uncommon card from HeartGold & SoulSilver (card #101), illustrated by Ken Sugimori. Its current blended market value is $6.92 ungraded.