Professor's Research
| ebay.nl | n=2 | £2.14 | +176% |
| ebay.es | n=10 | £1.62 | +109% |
| ebay.co.uk | n=3 | £1.36 | +75% |
| ebay.de | n=20 | £1.30 | +68% |
| ebay.fr | n=2 | £0.84 | +9% |
| ebay.com | n=22 | £0.78 | — |
How is this value calculated?
Recency-weighted trimmed median of 8 NM sales (RAW; outliers trimmed against the median, newer sales weigh more, dynamic half-life).
| Evidence path | Sales | Age | Value vᵢ | Weight gᵢ |
|---|---|---|---|---|
| eigene rohe NM-Verkäufe | 6 | 3 mo | £1.35 | 48.98 |
| eigene LP-Verkäufe ÷ 0.9338 | 3 | 37 d | £1.36 | 3.94 |
Measured error for this era×language (backtest): ±16 %
| Evidence path | Sales | Age | Value vᵢ | Weight gᵢ |
|---|---|---|---|---|
| en roh NM × 1.08 (Sprach-Faktor aus 92 Karten) | 6 | 3 mo | £1.46 | 3.74 |
Measured error for this era×language (backtest): ±19 %
| Evidence path | Sales | Age | Value vᵢ | Weight gᵢ |
|---|---|---|---|---|
| en roh NM × 1.3986 (Sprach-Faktor aus 59 Karten) · Set -15% nachgeführt | 6 | 3 mo | £1.71 | 1.52 |
Measured error for this era×language (backtest): ±25 %
Gate not green — shown only here, never as the price.
| Evidence path | Sales | Age | Value vᵢ | Weight gᵢ |
|---|---|---|---|---|
| en roh NM × 1.0575 (Sprach-Faktor aus 43 Karten) | 6 | 3 mo | £1.43 | 4.83 |
Measured error for this era×language (backtest): ±17 %
No PSA numbers for this print yet — in any language.
#038 · C
#063 · C
#115 · C
#039 · C
#099 · C
#050 · C
#085 · C
#111 · C
#061 · C
#083 · C
#093 · C
#015 · C
#072 · C
#097 · C
#084 · SEC
#078 · UR
#240 · UR
#150 · UR
#SWSH152
#241 · UR
#147 · RH
#222
#SWSH178
#223
#125 · C
#085 · U
#123 · C
#221
#189 · R
#087 · HR
#155 · C
#088 · HR
#190 · R
#124 · C
Frequently asked questions
What will I get for Professor's Research Prismatic Evolutions 122/131 if I want to sell quickly?
Half of all sales fell between £0.78 and £1.58, with a median of £1.17. Selling fast lands you nearer the lower end; with patience, good photos and a complete title the upper end is achievable.
Below which price is an offer for Professor's Research Prismatic Evolutions 122/131 unrealistic?
The cheapest genuine sales were around £0.74. Offers well below £0.45 are typically fakes, mislabelled cards or a different variant — ask for photos of all four borders and a close-up of the surface.
How does Last Sold determine the market value?
Last Sold 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.