Prof. Oak's Research
Market price
£114.11
Price history · RAW
2026-04-03 · £111.11
£133.32 · 2026-07-27
How is this value calculated?
Ladder estimate · English
· ~£1.54
gelb
| Evidence path | Sales | Age | Value vᵢ | Weight gᵢ |
|---|---|---|---|---|
| eigene rohe NM-Verkäufe · Set +12% nachgeführt | 6 | 2 mo | £1.50 | 48.98 |
| eigene LP-Verkäufe ÷ 0.8348 | 6 | 28 d | £2.55 | 2.28 |
value = exp( Σ gᵢ·ln vᵢ ⁄ Σ gᵢ ) = £1.54 · Σ g = 51.26
Measured error for this era×language (backtest): ±22 %
Gate not green — shown only here, never as the price.
Ladder estimate · Deutsch
· ~£0.65
rot
| Evidence path | Sales | Age | Value vᵢ | Weight gᵢ |
|---|---|---|---|---|
| en roh NM × 0.4267 (Sprach-Faktor aus 6 Karten) · Set +16% nachgeführt | 6 | 2 mo | £0.65 | 2.91 |
value = exp( Σ gᵢ·ln vᵢ ⁄ Σ gᵢ ) = £0.65 · Σ g = 2.91
Measured error for this era×language (backtest): ±20 %
Gate not green — shown only here, never as the price.
Ladder estimate · Français
· ~£3.49
rot
| Evidence path | Sales | Age | Value vᵢ | Weight gᵢ |
|---|---|---|---|---|
| en roh NM × 2.2712 (Sprach-Faktor aus 5 Karten) · Set +16% nachgeführt | 6 | 2 mo | £3.49 | 1.63 |
value = exp( Σ gᵢ·ln vᵢ ⁄ Σ gᵢ ) = £3.49 · Σ g = 1.63
Measured error for this era×language (backtest): ±2 %
Gate not green — shown only here, never as the price.
PSA Population
No PSA numbers for this print yet — in any language.
Recent sales · 3
| 2026-07-27 | EN | RAW NM | Pokemon Prof. Oak's Research Professor Program Promo Card 98 · eBay | £112.18 |
| 2026-05-07 | EN | RAW UNKNOWN | Pokemon Prof. Oak's Research Professor Program 2004-05 Promo | £133.32 |
| 2026-04-03 | EN | RAW UNKNOWN | Tarjeta Promocional Pokemon Prof. Oak's Research Professor P | £111.11 |
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#SWSH178FAQ
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.
Prof. Oak's Research FireRed & LeafGreen · 98/112