Professor Oak's ResearchExpedition Base Set 149/165 price & value
$2.22
down −2.2%4 weeks · Steady
High confidence
High confidence
How closely the price sources agree, and how often the card trades.
- 33 ungraded in the last 90 days, all conditions
- 12 sales on record listed as near mint
- Last sale Oct 31, 2026
High liquidity76/100
High liquidity
Trades often, at prices that agree. It counts sales, not how long a listing takes to sell.
About 11 ungraded copies sell a month across all conditions, the pace of the last 90 days.
How we measure liquidity →Near mint · UltraBall Market Value · 33 ungraded sales in the last 90 days, all conditions · as of Nov 12, 2026
Graded: PSA 10 $20.40
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Prices updated Nov 12, 2026 · How we calculate the UltraBall Market Value
People ask about this card
- What is Professor Oak's Research 149/165 worth raw, in PSA 9 and in PSA 10?
- As of Nov 12, 2026, Professor Oak's Research 149/165 is about $2.22 ungraded near mint (33 sales in 90 days); PSA 9: too few sales to price; PSA 10 about $20.40 (1 sale). Every grade’s price.
- Which printing of Professor Oak's Research 149/165 is this, and why do two copies differ in price?
- Professor Oak's Research 149/165 comes in 2 printings: Non-Holo $2.22 ungraded, Reverse Holo $34.06 ungraded. Reverse holo or non-holo: the reverse holo’s border and text box shine; the non-holo has no shine anywhere. Printings compared.
Professor Oak's Research 149/165 price over time
- Recorded prices, joined day to day
Ungraded, 1 year: $1.58 on Nov 11, 2025, $2.22 on Nov 12, 2026. Lowest $1.48, highest $2.75.
- Now
- $2.22
- 4 weeks
- −2.2%
- 90 days
- +19%
- 1 year
- +41%
- Highest, 1Y
- $2.75
- Lowest, 1Y
- $1.48
Recorded history starts January 2021. Earlier history is monthly averages; from July 22, 2026 the line is a smoothed 7-day average of daily prices, so single-day swings don’t show. Between recorded prices, the line and its daily values are estimated from the prices either side.
Professor Oak's Research 149/165 price by month
Ungraded, at the end of each month, newest first: the line above read off at each month’s last day. The latest month ends on today’s UltraBall Market Value.
| Month | Ungraded | Change on month |
|---|---|---|
| November 2026to Nov 12, 2026 | $2.22 | up +0.5% |
| October 2026 | $2.21 | up +9.4% |
| September 2026 | $2.02 | up +7.4% |
| August 2026 | $1.88 | down −1.6% |
| July 2026 | $1.91 | – |
| May 2026 | $1.99 | down −28% |
| April 2026 | $2.75 | up +38% |
| March 2026 | $1.99 | up +9.3% |
| February 2026 | $1.82 | down −18% |
| January 2026 | $2.21 | up +49% |
| December 2025 | $1.48 | down −6.3% |
| November 2025 | $1.58 | up +6.0% |
Recent verified sales
RawProfessor Oak's Research Expedition Base Set 149/165 LP Pokemon 2002Nov 10, 2026 · eBay · Sold as light play · View listing · $1.99- RawProfessor Oak's Research 149/165 Expedition Base Set RegularNov 9, 2026 · eBay · Condition not stated · Offers taken (asking price; paid may be lower) · View listing · Asking price, up to $1.49asking
- RawPokémon TCG Professor Oak’s Research Expedition 149/165 Regular MP.Nov 8, 2026 · eBay · Sold as moderate play · View listing · $4.68
- PSA 9Pokemon Professor Oak's Research Expedition 149/165 PSA 9 MintNov 8, 2026 · eBay · View listing · $23.50
- RawProfessor Oak's Research 149/165 Expedition Pokemon TCG LPNov 5, 2026 · eBay · Sold as light play · View listing · $2.49
- RawPROFESSOR OAK'S RESEARCH 149/165 Expedition Base Set Uncommon POKEMONOct 31, 2026 · eBay · Sold as near mint · View listing · $3.35
- RawProfessor Oak's Research # 149/165 (Trainer) Uncom. Expedition 2002 LPOct 30, 2026 · eBay · Sold as light play · View listing · $2.14
- RawProfessor Oak's Research - 149/165 - LP - ExpeditionOct 27, 2026 · eBay · Sold as light play · View listing · $2.69
RawProfessor Oak's Research 149/165 Uncommon Expedition Base Set Pokemon NMOct 24, 2026 · eBay · Sold as near mint · Offers taken (asking price; paid may be lower) · View listing · Asking price, up to $3.99asking
PSA 92002 Pokemon Expedition #149/165 Professor Oak's Research PSA 9 MINTOct 22, 2026 · eBay · Auction · View listing · $15.50
PSA 8Professor Oak's Research 149/165 Expedition Base Set 2002 PSA 8 EnglishOct 19, 2026 · eBay · Best offer accepted (asked $25.00) · View listing · $15.01
PSA 62002 POKEMON EXPEDITION #149 PROFESSOR OAK'S RESEARCH PSA 6Sep 12, 2026 · eBay · Auction · View listing · $7.50CGC 10 Pristine2002 Pokemon Expedition Professor Oak's Research #149 CGC 10 PRISTINESep 7, 2026 ·
Fanatics Collect · View listing · $86.40- PSA 9Pokémon Expedition Set Regular Professor Oak's Research - PSA 9! PK1024Aug 28, 2026 · eBay · Offers taken (asking price; paid may be lower) · View listing · Asking price, up to $25.13asking
CGC 102002 Pokemon Expedition Base Set Professor Oak's Research #149 CGC 10 GEM MINTJul 20, 2026 ·
Fanatics Collect · View listing · $21.60- PSA 10PSA 10 Professor Oak's Research Trainer 149/165 Expedition Pokemon 2002Likely best offer · asking price shownJul 18, 2026 · eBay · View listing · Asking price, up to $275asking
- PSA 102002 POKEMON EXPEDITION #149 PROFESSOR OAK'S RESEARCH PSA 10Likely best offer · asking price shownJul 17, 2026 · eBay · View listing · Asking price, up to $265asking
- PSA 92002 Pokemon Expedition Professor Oak's Research #149 PSA 9 MINTJul 2, 2026 · eBay · View listing · $36.00
Graded values
Professor Oak's Research 149/165 price by grade
| Grade | Market value | 4 wk | Sales/moSales a month | Last sale |
|---|---|---|---|---|
| UngradedHigh. How closely the price sources agree, and how often the card trades. | $2.22Last $3.35 · Oct 31, 2026 | down −2.2% | 11High liquidity. High | $3.35Oct 31, 2026High. How closely the price sources agree, and how often the card trades. |
| PSA 109.2× rawLow. Few recent sales in this condition. Treat the figure as a rough guide. | $20.40 | down −64% | No recent sales | –Low. Few recent sales in this condition. Treat the figure as a rough guide. |
| PSA 85.7× rawLimited. How closely the price sources agree, and how often the card trades. | $12.74Last $15.01 · Oct 19, 2026 | 0.0% | 0.3Low liquidity. Low | $15.01Oct 19, 2026Limited. How closely the price sources agree, and how often the card trades. |
| PSA 74.5× rawLimited. How closely the price sources agree, and how often the card trades. | $10.00 | up +105% volatile | No recent sales | –Limited. How closely the price sources agree, and how often the card trades. |
| CGC 1010.3× rawMedium. Some recent sales, or sales that vary more than usual. | $22.80Last $21.60 · Jul 20, 2026 | – | No recent sales | $21.60Jul 20, 2026Medium. Some recent sales, or sales that vary more than usual. |
Each graded row counts only that grade's sales; the ungraded row counts every condition. Sales a month is the 90-day pace. Last sale is the latest verified sale, never an asking price. How we calculate the UltraBall Market Value
Showing each company’s top grade. Choose a company above for every grade it has a price for.
Grade it with PSA?
Grade yours from photos →Change the costs, or add your own odds →- If it gets a PSA 10
- −$69.32
- If it gets a PSA 8
- −$75.97
- PSA fee for a PSA 10
- $59.99 Standard
- Slab sale price to break even
- $100at Standard, $59.99
- Grading pays, at today’s prices
- No priced grade
- Historical PSA 10 rate
- 27%
Against selling raw at $2.22, after the PSA fee for what the slab is worth (a 10 goes in at Standard, $59.99; a 8 at the same level), $25.00 shipping and insurance, and eBay US selling fees, as the selling calculator works them out, with its usual $5 postage and $1 packing on each sale: the same sum as the selling calculator. Each grade is charged the fee level its own slab price needs, so the break-even price carries the fee for a slab at that price, not the PSA 10 fee. These are outcomes if the card gets each grade, not the chance that it will. PSA has graded 71 copies; 19 got a 10.
Population report71 PSA graded · Grade breakdown and gem rate
Population
- PSA graded
- 71
- PSA 10
- 19
- PSA 9
- 25
- Historical PSA 10 rate
- 27%
- PSA 10s of all graded
A higher historical PSA 10 rate than 42% of the Expedition Base Set cards PSA has graded enough of.
| Grader | Graded | 10s | 9s | 10s share |
|---|---|---|---|---|
| PSA | 71 | 19 | 25 | 27% |
| CGC | 110 | 22 | 22 | 20% |
- PSA graded
- 71
- 10s
- 19
- 10s share
- 27%
- Historical PSA 10 rate
- 27%
Every PSA grade (6)
| Grade | Copies | Share |
|---|---|---|
| 10 | 19 | 27% |
| 9 | 25 | 35% |
| 8 | 16 | 23% |
| 7 | 8 | 11% |
| 6 | 1 | 1.4% |
| 5 | 2 | 2.8% |
PSA’s count of Oct 13, 2026. The rate is PSA 10s over every copy PSA has graded.
- CGC graded
- 110
- 10s
- 22
- 10s share
- 20%
- Historical CGC gem rate
- 20%
- Gem: 10s, Pristine and Perfect 10s
Every CGC grade (13)
| Grade | Copies | Share |
|---|---|---|
| 10 | 22 | 20% |
| 9.5 | 4 | 3.6% |
| 9 | 22 | 20% |
| 8.5 | 15 | 14% |
| 8 | 14 | 13% |
| 7.5 | 4 | 3.6% |
| 7 | 9 | 8.2% |
| 6.5 | 4 | 3.6% |
| 6 | 3 | 2.7% |
| 5.5 | 4 | 3.6% |
| 5 | 3 | 2.7% |
| 4.5 | 1 | 0.91% |
| Authentic | 5 | 4.5% |
CGC’s count of Nov 10, 2026. 10s share counts every 10 label; CGC’s own gem is 10s, Pristine and Perfect 10s.
PSA’s count of Oct 13, 2026. CGC, BGS and SGC as of Nov 10, 2026; their 10s include Pristine, Perfect and Black Label 10s. PSA counts the cards it has graded, not every copy that exists. Compare with the low pop cards and the hardest PSA 10s.
PSA 10 price against PSA’s population
The same 12 weeks, Jul 24, 2026 to Oct 19, 2026: the price on the day of each weekly PSA report, and the report’s counts. Side by side, not cause and effect.
Left: PSA 10 price, US$. Right: PSA graded copies.
About this card
Professor Oak's Research is card 149 of 165 in the Expedition Base Set price guide, a set released in September 2002 during the Wizards of the Coast era. Its rarity is Uncommon. The artwork is by Ken Sugimori. In the checklist it sits after Professor Elm's Training Method 148/165 and before Strength Charm 150/165.
It is the 146th most valuable of the 165 priced cards in Expedition Base Set, behind Charizard 6/165 (see the most valuable Expedition Base Set cards).
What the data says
The ungraded value has held within 10% over four weeks (−2.2% on 7-day averages), on 33 ungraded sales in 90 days.
From prices of Nov 12, 2026 and sales to Oct 31, 2026. Observations, not advice or a forecast. How we read the market
Market snapshot
How each figure is worked out- 4 weeks
- −2.2%ungraded, between 7-day averages
- 90 days
- +19%ungraded, between 7-day averages
- 1 year
- +41%ungraded; before Jul 22, 2026 from monthly averages
- Direction
- Steadywithin 10% of four weeks ago, on 7-day averages
- High since daily tracking
- 2% under$2.27 on Oct 15, 2026, 7-day average; daily prices since Jul 22, 2026
- Liquidity
- High11 ungraded sales a month over 90 days
- Price confidence
- High confidenceMany recent comparable sales that agree closely.
- Ungraded sold
- 14in 30 days; 33 in 90
- PSA 10 population
- 19of 71 PSA graded, count of Oct 13, 2026
Printings compared
- Non-Holo · this pageNothing on the front shines.$2.22 ungraded
- Reverse HoloThe border and text box shine; the picture is flat.$34.06 ungraded
- Reverse holo or non-holo: the reverse holo’s border and text box shine; the non-holo has no shine anywhere.
- Number
- 149/165
- Set code
- EX
- Rarity
- Uncommon
- Released
- Sep 15, 2002
- Illustrator
- Ken Sugimori
- Printings
- Non-holo, Reverse holo
- Character
- All Professor Oak cards
- Expedition Base Set checklistAll 165 cards with prices
- Most valuable Expedition Base Set cardsRanked by ungraded value
- Expedition Base Set chase cardsThe pulls collectors open packs for, with odds where we hold them
- Wizards of the Coast eraSets and chase cards from January 1999 on
- 2002 Pokémon cardsEvery set released in 2002, with prices
Cite this price
Professor Oak's Research 149/165 (Expedition Base Set) is worth $2.22 ungraded as of Nov 12, 2026, according to UltraBall's Market Value (https://ultraball.com/cards/expedition-base-set/professor-oaks-research-149).
Professor Oak's Research 149/165 (Expedition Base Set) is worth $2.22 ungraded as of Nov 12, 2026, according to UltraBall's Market Value (https://ultraball.com/cards/expedition-base-set/professor-oaks-research-149).
https://ultraball.com/cards/expedition-base-set/professor-oaks-research-149
<a href="https://ultraball.com/cards/expedition-base-set/professor-oaks-research-149">Professor Oak's Research 149/165 (Expedition Base Set) price: $2.22 on UltraBall</a>
Nearby in Expedition Base Set
More cards by Ken Sugimori
Chase cards from this set
Chase cards from the rest of the era
Questions collectors ask
As of Nov 12, 2026, Professor Oak's Research 149/165 Expedition Base Set is worth about $2.22 ungraded. A PSA 10 copy is worth about $20.40. How we price cards.