Professor's Research
| ebay.fr | n=7 | $7.28 | +138% |
| ebay.de | n=20 | $6.50 | +113% |
| ebay.co.uk | n=46 | $4.70 | +54% |
| ebay.it | n=3 | $3.88 | +27% |
| ebay.es | n=15 | $3.50 | +15% |
| ebay.com | n=119 | $3.11 | +2% |
| ebay.nl | n=4 | $3.06 | — |
How is this value calculated?
Recency-weighted trimmed median of 96 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 | 89 | 14 d | $3.46 | 726.53 |
| eigene LP-Verkäufe ÷ 0.8891 | 9 | 10 d | $2.54 | 4.28 |
| eigene PSA10-Verkäufe ÷ 7.5331 | 2 | 4 mo | $4.61 | 0.09 |
| de roh NM × 1.0109 (Sprach-Faktor aus 45 Karten) | 5 | 24 d | $5.08 | 1.09 |
Measured error for this era×language (backtest): ±17 %
| Evidence path | Sales | Age | Value vᵢ | Weight gᵢ |
|---|---|---|---|---|
| eigene rohe NM-Verkäufe | 5 | 24 d | $5.03 | 40.82 |
| en roh NM × 0.9892 (Sprach-Faktor aus 45 Karten) | 89 | 14 d | $3.41 | 1.1 |
Measured error for this era×language (backtest): ±22 %
| Evidence path | Sales | Age | Value vᵢ | Weight gᵢ |
|---|---|---|---|---|
| eigene rohe NM-Verkäufe | 2 | 4 mo | $8.10 | 16.33 |
| en roh NM × 1.2205 (Sprach-Faktor aus 31 Karten) | 89 | 14 d | $4.22 | 1.2 |
| de roh NM × 1.4165 (Sprach-Faktor aus 26 Karten) | 5 | 24 d | $7.12 | 1.14 |
Measured error for this era×language (backtest): ±20 %
Gate not green — shown only here, never as the price.
| Evidence path | Sales | Age | Value vᵢ | Weight gᵢ |
|---|---|---|---|---|
| en roh NM × 1.2306 (Sprach-Faktor aus 34 Karten) | 89 | 14 d | $4.25 | 4.93 |
| de roh NM × 1.17 (Sprach-Faktor aus 27 Karten) | 5 | 24 d | $5.88 | 1.29 |
Measured error for this era×language (backtest): ±18 %
No PSA numbers for this print yet — in any language.
Frequently asked questions
Auction or Buy It Now — which gets more for Professor's Research Pokémon GO 078/78?
Across 29 auctions the median was $2.82, across 101 fixed-price sales $4.52. Fixed price therefore fetched about 60 % more — for this card patience with a set price is the better route.
What will I get for Professor's Research Pokémon GO 078/78 if I want to sell quickly?
Half of all sales fell between $2.78 and $4.91, with a median of $3.49. 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 Pokémon GO 078/78 unrealistic?
The cheapest genuine sales were around $2.18. Offers well below $1.31 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.