Market value · ungraded
What's your copy worth?
What this price is based on
Medium confidence11 sales in 90 days, but prices vary widely.
Recent Raw sales
- Jun 27, 2026eBay — Imposter Professor Oak 73/102 Rare Base Set Unlimited Pokemon Lightly PlayedLPUnlimited$7.49
- Jun 27, 2026eBay — Imposter Professor Oak 73/102 Rare Base Set Unlimited Pokemon Moderately PlayedMPUnlimited$3.49
- Jun 27, 2026eBay — Imposter Professor Oak 73/102 Rare: 1999-2000 Base Set Pokemon Trading Card Game$9.19
- Jun 27, 2026eBay — Pokemon Cards Holo/Rare - You Choose - WOTC - Base set - Fossil - Team Rocket +$3.29
- Jun 27, 2026eBay — Pokémon Company Imposter Professor Oak 73/102 Base Set Regular Rare UnlimitedUnlimited$6.99
- Jun 27, 2026eBay — 1999 Pokemon Base Set: Choose Your Card! All Cards Available - 100% Authentic$1.95
- Jun 27, 2026eBay — Imposter Professor Oak 73/102 Rare Base Set Unlimited Pokemon Lightly PlayedLPUnlimited$4.05
- Jun 27, 2026eBay — Pokémon TCG - Imposter Professor Oak 73/102 - Rare - Base Unlimited [Near Mint]NMUnlimited$7.25
By grade
- Raw$4.5316 sales
- PSA 9$97.208 sales
- PSA 10$4997 sales
- PSA 8$44.003 sales
- PSA 6$27.603 sales
- CGC 6.5$6.102 sales
- CGC 6$10.292 sales
- CGC 10$1092 sales
From 45 completed sales recorded between Dec 23, 2024 and Jul 16, 2026. Sold prices only — asking prices are never counted. The range is wide because these sales span different printings and conditions — 1st Edition, Shadowless and Unlimited copies all carry this card's name, and they trade at very different levels. Each sale above is labelled with what its listing claimed, so you can see which ones describe the same object. Treat the median as the typical copy, not the range.
Grade it or not
GRADE ITBased on 29 graded sales and 1,889,841 pop-report entries for a near-mint copy.
See the numbers — Trader plan and aboveBuy this card
✨ Is it worth it?
An AI market read of this card — value, momentum, grading economics, liquidity. It lays out the data; you decide.
Impostor Professor Oak is a Rare Pokémon card from Base (#73), illustrated by Ken Sugimori. It's a Trainer card. Its current blended market value is $5.92 ungraded, with a PSA 10 worth around $217 — a gem-mint grading premium of roughly 37× the raw value. Prices are aggregated across marketplaces — raw and graded, updated daily and shown in your local currency.
Prices last updated 20 August 2026.
The receipts
Price history · Raw
We'll email you when this card's value crosses your target.
Verified sales history32 in 90 days✓ real completed listings
Real completed eBay sales, refreshed periodically. Grade read from the listing title. Implausibly priced listings (lots, proxies, empty slabs) and wrong-variant sales are filtered out. Links to eBay are affiliate links — we may earn a commission.
Demand & liquidity
Last sold $7 · Raw · 27 Jun 2026
Should you grade it?
Expected return across every likely grade, after fees — the realistic average, not the best case. Only 6.3% of copies gem (PSA 10 best case +$139); most land at PSA 9 or below.
The odds
Impostor Professor Oak is a Rare in Base — the pack's hit slot lands on Rare 67% of the time, split across 16 rare cards in the set, so pulling this exact card is roughly 1 in 24 packs.
Estimates only. Pack odds come from CardTrack's pack model (the same one behind the pack simulator) — not an official rate. Grading odds are the real cumulative PSA population, which skews toward nicer, resubmitted copies, so it overstates the true first-submission gem rate. Full grade-by-grade breakdown below.
Grade-by-grade ROI & risk-adjusted outcomesNet vs raw per target grade, plus the probability-weighted distribution
| Target grade | Est. value | Grading fee | Net vs raw | Multiple |
|---|---|---|---|---|
| PSA 10 | $217.24 | $72 | +$139 | 36.7× |
| PSA 8 | $40.50 | $70 | −$36 | 6.8× |
⚖️ Risk-adjusted return
Best case isn't the whole story. Weighting every grade by how often it actually happens, across 570 PSA-graded copies:
| Likely outcome | Chance | Value |
|---|---|---|
| PSA 10 | 6.3% | $217.00 |
| PSA 9 | 21.8% | $87.00 |
| PSA ≤8 | 71.9% | $6.00 |
Net = graded value − raw value − grading cost (tier fee + ~$20 round-trip shipping), using PSA fees as of 2026-06-28; the paused PSA Value tier is excluded so this isn't overstated. Gem rate is estimated from cumulative PSA population, which skews toward nicer, resubmitted copies — so it overstates the true grade rate. Treat it as a guide, not a guarantee.
Population across gradersPSA, CGC & BGS — every grade, with gem rates
Only 6% of 570 CGC-graded Impostor Professor Oak copies are a gem-mint 10 (36 of 570) — the rest grade lower.
Real graded population from PSA, CGC & BGS — a lower gem rate means a Impostor Professor Oak 10 is harder to pull.
Copies for sale right now
Affiliate links — we may earn a commission. Prices shown are sold-based, not sponsored placements.
All grades & conditions
Every grade we pricePSA / CGC / BGS ladder with per-grade population
| Grade | Relative value | Price |
|---|---|---|
| PSA 10 | $217$185–$250 | |
| PSA 8 | $41$34–$47 | |
| PSA 7 | $22$19–$25 |
Raw condition ladderNM → damaged, with real sold medians where we have them
Market dataCross-market spread, EU price, momentum & community buzz
Market signal
Derived from this card's 90-day price history, recent trend and cross-market price gap. Informational, not advice.
Card textAttacks, abilities, weakness / resistance / retreat
Your opponent shuffles his or her hand into his or her deck, then draws 7 cards.
Card detailsSet, rarity, artist, Pokédex & specs
More from Base
Frequently asked questions
How much is Impostor Professor Oak (Base #73) worth?
As of 20 August 2026, Impostor Professor Oak from Base is worth approximately $5.92 ungraded (near-mint), and around $217 in PSA 10 gem mint. Values are blended from real Cardmarket, eBay sold and TCGplayer prices and update daily.
What is the PSA 10 price for Impostor Professor Oak?
A PSA 10 (gem mint) Impostor Professor Oak from Base is worth around $217 — roughly 37× the raw ungraded value of $5.92.
Should I grade my Impostor Professor Oak?
A PSA 10 sells for about $217 versus $5.92 raw — roughly a 37× uplift. Grading is worth it when that premium comfortably beats the grading fee and the card is clean enough to have a real shot at a 10. See the "Should you grade it?" estimate above for net profit per grade.
Is Impostor Professor Oak rare?
Impostor Professor Oak is a Rare card from Base (card #73), illustrated by Ken Sugimori. Its current blended market value is $5.92 ungraded.
Cite & embed this card
Free to use with attribution to CardTrack.
Impostor Professor Oak (Base #73) — Pokémon market value $5.92, PSA 10 $217.24. Source: CardTrack, https://cardtrack.com/pokemon/card/base/impostor-professor-oak-73<iframe src="https://cardtrack.com/embed/card?id=base1-73" width="100%" height="160" style="border:0;max-width:460px" title="Impostor Professor Oak price — CardTrack" loading="lazy"></iframe>
<p style="font:12px system-ui">Source: <a href="https://cardtrack.com">CardTrack</a></p>