Professor's Research
Market price
€149,11
Price history · RAW
2026-04-14 · €39,99
€225,04 · 2026-07-01
How is this value calculated?
Ladder estimate · English
· ~€1,50
gruen
| Evidence path | Sales | Age | Value vᵢ | Weight gᵢ |
|---|---|---|---|---|
| es roh NM × 0.8111 (Sprach-Faktor aus 72 Karten) | 3 | 2 mo | €1,83 | 9.31 |
| unknown roh NM × 0.7954 (Sprach-Faktor aus 115 Karten) | 3 | 34 d | €1,19 | 8.15 |
value = exp( Σ gᵢ·ln vᵢ ⁄ Σ gᵢ ) = €1,50 · Σ g = 17.46
Measured error for this era×language (backtest): ±16 %
Ladder estimate · Deutsch
· ~€1,75
gruen
| Evidence path | Sales | Age | Value vᵢ | Weight gᵢ |
|---|---|---|---|---|
| es roh NM × 0.8847 (Sprach-Faktor aus 64 Karten) · Set +13% nachgeführt | 3 | 2 mo | €2,16 | 4.5 |
| unknown roh NM × 0.8891 (Sprach-Faktor aus 83 Karten) | 3 | 34 d | €1,33 | 3.5 |
value = exp( Σ gᵢ·ln vᵢ ⁄ Σ gᵢ ) = €1,75 · Σ g = 8.0
Measured error for this era×language (backtest): ±19 %
Ladder estimate · Français
· ~€1,76
gelb
| Evidence path | Sales | Age | Value vᵢ | Weight gᵢ |
|---|---|---|---|---|
| unknown roh NM × 1.0392 (Sprach-Faktor aus 57 Karten) | 3 | 34 d | €1,55 | 4.2 |
| es roh NM × 1.0371 (Sprach-Faktor aus 40 Karten) · Set -22% nachgeführt | 3 | 2 mo | €2,02 | 3.75 |
value = exp( Σ gᵢ·ln vᵢ ⁄ Σ gᵢ ) = €1,76 · Σ g = 7.95
Measured error for this era×language (backtest): ±25 %
Gate not green — shown only here, never as the price.
Ladder estimate · Italiano
· ~€1,80
gruen
| Evidence path | Sales | Age | Value vᵢ | Weight gᵢ |
|---|---|---|---|---|
| es roh NM × 0.9258 (Sprach-Faktor aus 32 Karten) | 3 | 2 mo | €2,09 | 7.68 |
| unknown roh NM × 1.0251 (Sprach-Faktor aus 46 Karten) | 3 | 34 d | €1,53 | 6.95 |
value = exp( Σ gᵢ·ln vᵢ ⁄ Σ gᵢ ) = €1,80 · Σ g = 14.63
Measured error for this era×language (backtest): ±17 %
PSA Population
No PSA numbers for this print yet — in any language.
Recent sales · 5
| 2026-07-01 | UNKNOWN | RAW UNKNOWN | Forschung des Professors Prof. Eich PRE 122/131 Pokémon Prof | €39,99 |
| 2026-06-23 | UNKNOWN | RAW UNKNOWN | Pokémon TCG Professor's Research (Oak) 122/131 Professor Pro | €225,04 |
| 2026-06-04 | EN | RAW UNKNOWN | Professor's Research 122/131 Professor Program Stamp | €116,25 |
| 2026-06-01 | UNKNOWN | RAW UNKNOWN | Pokémon TCG Professor's Research [Oak] 122/131 Professor Pro | €157,01 |
| 2026-04-14 | UNKNOWN | RAW UNKNOWN | Professor's Research 122/131 Oak Professor Program Pokemon P | €156,79 |
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Frequently asked questions
How does lastsold determine the market value?
lastsold uses only real sales — eBay plus auction houses like Goldin & Fanatics — recent sales count more (recency weighting), outliers and fakes are removed. It's not an estimate but actual sold prices, separated by condition, language and grading.