Professor Oak's Research Price Guide
Pokémon · Expedition Base Set · 149/165 · Uncommon · Released 2002
Professor Oak's Research (Expedition Base Set 149/165) is currently worth $1.91 raw (near mint) and $45.00 in PSA 10 (as of Aug 10, 2026). Values come from real eBay sold listings (via Scrydex) and are refreshed daily. Grading is the single biggest value lever — check the raw-to-PSA-10 gap below, then scan your copy to see if its centering makes the grade.
normal prices
Raw (ungraded)
| NM | $1.91 |
| LP | $1.20 |
| MP | $1.11 |
| HP | $0.49 |
| DM | $0.53 |
Graded — grade ladder
| Grade | PSA | CGC | SGC |
|---|---|---|---|
| 10 | $45.00 | $40.03 | — |
| 9.5 | — | — | $10.09 |
| 9 | $35.93 | $9.97 | — |
| 8.5 | — | $8.00 | — |
| 8 | $13.00 | $5.92 | — |
| 7.5 | — | $5.98 | — |
| 7 | — | $3.14 | — |
Last updated 2026-08-10 · Source: real eBay sold listings (via Scrydex)
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reverseHolofoil prices
Raw (ungraded)
| NM | $29.98 |
| LP | $15.96 |
| MP | $7.29 |
| DM | $5.00 |
Graded — grade ladder
| Grade | PSA | CGC |
|---|---|---|
| 10 | $200 | $125 |
| 9 | $50.14 | $15.00 |
| 8 | $20.27 | — |
| 7 | $19.09 | — |
| 6 | $16.00 | — |
Last updated 2026-08-10 · Source: real eBay sold listings (via Scrydex)
Shop this card on eBay ↗As an eBay Partner, Midpoint may earn commission from qualifying purchases.
Is it worth grading?
Worth grading — even a PSA 9 beats raw
A PSA 10 Professor Oak's Research sells for $45.00 against $1.91 raw: a $43.09 spread, 24× the ungraded price. Even a PSA 9 ($35.93) clears the raw price after an economy-tier ~$25 fee, so a near-miss still comes out ahead. Centering is the usual reason a clean copy misses the 10 — measure it before you submit.
Full grading break-even for Professor Oak's Research: fee tiers, best grader, gem-rate math →
Should I pay this?
Enter the seller’s asking price to see your net outcome per grade.
More from Expedition Base Set
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Professor Oak's Research — frequently asked
How much is Professor Oak's Research (Expedition Base Set) worth?
As of Aug 10, 2026, Professor Oak's Research (Expedition Base Set): an ungraded near-mint copy sells for about $1.91, a PSA 10 sells for about $45.00, a PSA 9 for about $35.93. Values come from real eBay sold listings (via Scrydex) and are refreshed daily.
How much is a PSA 10 Professor Oak's Research worth?
As of Aug 10, 2026, a PSA 10 (Gem Mint) Professor Oak's Research (Expedition Base Set) sells for about $45.00, compared with $1.91 for a raw near-mint copy.
Is Professor Oak's Research worth grading?
A PSA 10 Professor Oak's Research sells for $45.00 against $1.91 raw: a $43.09 spread, 24× the ungraded price. Even a PSA 9 ($35.93) clears the raw price after an economy-tier ~$25 fee, so a near-miss still comes out ahead. Centering is the usual reason a clean copy misses the 10 — measure it before you submit.
Where do these Pokémon card prices come from?
Prices are real eBay sold listings (via Scrydex), refreshed daily. Raw values reflect near-mint (NM) ungraded copies; graded values are per grading company and grade.
Is your Pokémon card centered well enough to grade?
Centering makes or breaks a PSA 10. Scan any card with Midpoint to measure its exact centering, get a grade estimate, and see what your copy is actually worth.
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