Professor's Research
Market price
$167.38
Price history · RAW
2026-04-14 · $44.89
$252.61 · 2026-07-01
How is this value calculated?
Ladder estimate · English
· ~$1.74
gruen
| Evidence path | Sales | Age | Value vᵢ | Weight gᵢ |
|---|---|---|---|---|
| eigene rohe NM-Verkäufe | 6 | 2 mo | $1.74 | 48.98 |
value = exp( Σ gᵢ·ln vᵢ ⁄ Σ gᵢ ) = $1.74 · Σ g = 48.98
Measured error for this era×language (backtest): ±16 %
Ladder estimate · Deutsch
· ~$1.80
gruen
| Evidence path | Sales | Age | Value vᵢ | Weight gᵢ |
|---|---|---|---|---|
| en roh NM × 1.0296 (Sprach-Faktor aus 92 Karten) | 6 | 2 mo | $1.80 | 2.05 |
value = exp( Σ gᵢ·ln vᵢ ⁄ Σ gᵢ ) = $1.80 · Σ g = 2.05
Measured error for this era×language (backtest): ±19 %
Ladder estimate · Français
· ~$3.04
gelb
| Evidence path | Sales | Age | Value vᵢ | Weight gᵢ |
|---|---|---|---|---|
| en roh NM × 1.4672 (Sprach-Faktor aus 56 Karten) · Set +30% nachgeführt | 6 | 2 mo | $3.04 | 1.28 |
value = exp( Σ gᵢ·ln vᵢ ⁄ Σ gᵢ ) = $3.04 · Σ g = 1.28
Measured error for this era×language (backtest): ±25 %
Gate not green — shown only here, never as the price.
Ladder estimate · Italiano
· ~$1.67
gruen
| Evidence path | Sales | Age | Value vᵢ | Weight gᵢ |
|---|---|---|---|---|
| en roh NM × 0.9607 (Sprach-Faktor aus 39 Karten) | 6 | 2 mo | $1.67 | 2.52 |
value = exp( Σ gᵢ·ln vᵢ ⁄ Σ gᵢ ) = $1.67 · Σ g = 2.52
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 | DE | RAW UNKNOWN | Forschung des Professors Prof. Eich PRE 122/131 Pokémon Prof | $44.89 |
| 2026-06-23 | EN | RAW UNKNOWN | Pokémon TCG Professor's Research (Oak) 122/131 Professor Pro | $252.61 |
| 2026-06-04 | EN | RAW UNKNOWN | Professor's Research 122/131 Professor Program Stamp | $130.49 |
| 2026-06-01 | EN | RAW UNKNOWN | Pokémon TCG Professor's Research [Oak] 122/131 Professor Pro | $176.24 |
| 2026-04-14 | EN | RAW UNKNOWN | Professor's Research 122/131 Oak Professor Program Pokemon P | $176.00 |
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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.
Professor's Research Prismatic Evolutions · 122/131