Pokémon TCG · Base Set · #73
Impostor Professor Oak #73 price
Base Set73Market prices
90-day range · TCGplayer
Impostor Professor Oak (#73, Rare) is a card from Pokémon set Base Set. Near Mint, it has a market price of about $7.75 on TCGplayer and €9.15 on Cardmarket (updated November 11, 2026). Over the last 7 days, its TCGplayer market price rose 11.5% and the Cardmarket price trend fell 27.1%. Over the last 30 days, its TCGplayer market price rose 15.7% and the Cardmarket price trend rose 6.8%. Over the last 90 days, its TCGplayer market price rose 35.5% and the Cardmarket price trend fell 22.9%. Its 90-day TCGplayer market price range is $5.44 to $7.75. Its 90-day Cardmarket price trend range is €6.82 to €13.20. Among the 16 Rare cards of Base Set, it is the tenth most valuable. Converted to dollars, its Cardmarket price is 31.4% higher than its TCGplayer price. On Sparkl, 18 collectors have this card.
Impostor Professor Oak #73 prices by finish
| Finish | TCGplayer | Cardmarket |
|---|---|---|
| Normal | $7.75 | €9.15 |
Near Mint prices: TCGplayer market price, Cardmarket price trend, updated November 11, 2026.
Price changes by finish
| Finish | Price | 7 days | 30 days | 90 days | 90-day range |
|---|---|---|---|---|---|
| Normal | TCGplayer market price | +11.5% | +15.7% | +35.5% | $5.44 – $7.75 |
| Normal | Cardmarket price trend | −27.1% | +6.8% | −22.9% | €6.82 – €13.20 |
Change of the same Near Mint price (same market, same finish) against 7, 30 and 90 days ago; range: its lowest and highest daily value over the last 90 days. Only where the price history supports a figure; lowest listings have none.
Price charts, graded prices from PSA, CGC, BGS, SGC, TAG and ACE, PSA population counts and recent sold listings are in Sparkl Pro.
About this card
- Set
- Base Set
- Number
- 73
- Rarity
- Rare
- Finishes
- Normal, Holo
- Rank in its rarity
- 10th of 16 Rare cards
- Against its rarity’s median
- About the median ($8.09)
- Cardmarket vs TCGplayer
- +31.4% after conversion ($1.1127 per euro)
- Released
- January 9, 1999
- Print language
- English
How this page is made: Near Mint prices from TCGplayer and Cardmarket, refreshed daily; ranks, medians and comparisons are computed by Sparkl from those prices.
You are viewing the free public price page
See everything about Impostor Professor Oak in Sparkl
- Its price history chart, every finish and graded prices
- The Base Set master set, card by card, with every price
- Scan your cards with your iPhone: set, number and finish are filled in for you
Free on iPhone and the web
Most valuable Base Set cards
- Charizard#4 · Rare Holo · $987.13Open in Sparkl
- Blastoise#2 · Rare Holo · $235.05Open in Sparkl
- Venusaur#15 · Rare Holo · $137.87Open in Sparkl
- Mewtwo#10 · Rare Holo · $87.37Open in Sparkl
- Alakazam#1 · Rare Holo · $76.15Open in Sparkl
- Raichu#14 · Rare Holo · $62.39Open in Sparkl
Next to Impostor Professor Oak #73 in Base Set
- Weedle#69 · Common · $0.55Open in Sparkl
- Clefairy Doll#70 · Rare · $8.09Open in Sparkl
- Computer Search#71 · Rare · $3.98Open in Sparkl
- Lass#75 · Rare · $3.66Open in Sparkl
- Pokémon Breeder#76 · Rare · $8.09Open in Sparkl
- Pokémon Trader#77 · Rare · $5.50Open in Sparkl