Image © The Pokémon Company, shown for identification.
Impostor Professor Oak
Base Set 2 · #102/130
Impostor Professor Oak (102/130), the Rare from Base Set 2, has an estimated ungraded market price of about $2.20, typically in the $2–$3 range.
As of September 12, 2026 · tracked daily by Riffle · estimates, not financial advice · how these numbers work
The modeled fair value of this card, with a confidence grade: what it should trade at, not just what it lists at. Part of Riffle premium, alongside price history and the full graded ladder.
About Impostor Professor Oak
Impostor Professor Oak is a Rare (102/130) from the Pokémon Base Set 2 set, released February 24, 2000. Ungraded copies currently trade at an estimated market price of $2–$3. The artwork is by Ken Sugimori. Riffle tracks its market price daily; graded (PSA) comps and full price history are available with Riffle.
Other versions of Impostor Professor Oak
Impostor Professor Oak appears on 2 different cards across the sets Riffle tracks, at very different values. This page covers #102/130 from Base Set 2; the collector number printed at the bottom of the card tells them apart.
FAQ
How much is Impostor Professor Oak (102/130) worth?
Impostor Professor Oak (102/130), the Rare from Base Set 2, has an estimated ungraded market price of about $2.20, typically in the $2–$3 range. Note: 1 other card named Impostor Professor Oak exists across the sets Riffle tracks, at very different values; check the collector number.
Which Impostor Professor Oak card is this, and how do I tell the versions apart?
This page covers Impostor Professor Oak (102/130), the Rare (about $2–$3) from Base Set 2.
The other version: #73/102 from Base Set (Rare, about $5–$7).
The collector number printed at the bottom of the card is the reliable way to tell them apart.
Should I grade Impostor Professor Oak (102/130)?
Ahead after fees: with a 32% PSA 10 gem rate and current graded prices, grading a near-mint Impostor Professor Oak (102/130) is estimated to net about $42 more than selling it raw (est.).
Assumes ~$25/card bulk-rate grading (standard service costs more); ignores turnaround time, sub-9 grades, and shipping. A screen, not a promise.
Is Impostor Professor Oak (102/130) rare?
Impostor Professor Oak (102/130) is a Rare. PSA has graded 117 copies to date, so graded supply is measurable and growing.
How rare is a PSA 10 Impostor Professor Oak (102/130)?
Of the 117 copies PSA has graded, 32% earned a PSA 10. That's a low gem rate, so flawless copies are genuinely hard to come by. Grade-by-grade population and pop-over-time appear with Riffle premium.
More from Base Set 2
Should I grade Impostor Professor Oak?
Ahead after fees: grading nets ≈ +$42 vs selling raw (est.)
Expected grading return from this card’s own PSA grade mix (32% gem rate; grades under 8 valued at the PSA 8 price) and current graded market prices, minus a ~$25/card bulk-rate grading fee, compared against selling ungraded at market price. Standard grading service costs more; centering risk, turnaround time, and shipping aren’t included. The exact PSA 8/9/10 prices behind this are part of Riffle premium. Not financial advice.
PSA population & gem rate
From the PSA population census, captured monthly by Riffle. A 32% gem rate is on the hard side; PSA 10 copies of this card are scarcer than the typical modern chase card. Grade-by-grade population and pop-over-time appear with Riffle premium.
- $2–$3 is the middle 80% of clean market activity, not the cheapest listing and not the most hopeful one.
- The band spans about ±14% around its midpoint: a moderate spread.
- Sampled daily since July 16, 2026, current as of September 12, 2026.
When the data thins, the band widens and says so, it never fakes precision. Exact source prices are part of Riffle premium; the band is Riffle’s own figure to publish. How these numbers work →