Professor's Research
| ebay.es | n=2 | $2.43 | +145% |
| ebay.de | n=2 | $1.39 | +40% |
| ebay.com | n=8 | $0.99 | — |
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 | 8 | 37 d | $1.47 | 65.31 |
Measured error for this era×language (backtest): ±16 %
| Evidence path | Sales | Age | Value vᵢ | Weight gᵢ |
|---|---|---|---|---|
| en roh NM × 0.893 (Sprach-Faktor aus 93 Karten) | 8 | 37 d | $1.31 | 2.99 |
Measured error for this era×language (backtest): ±19 %
| Evidence path | Sales | Age | Value vᵢ | Weight gᵢ |
|---|---|---|---|---|
| en roh NM × 1.0602 (Sprach-Faktor aus 69 Karten) | 8 | 37 d | $1.56 | 2.79 |
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 × 1.2178 (Sprach-Faktor aus 70 Karten) | 8 | 37 d | $1.79 | 5.24 |
Measured error for this era×language (backtest): ±17 %
No PSA numbers for this print yet — in any language.
#086 · 
#083 · 
#078 · 
#060 · 
#056 · 
#065 · 
#032 · 
#022 · 
#039 · 
#007 · 
#027 · 
#050 · 
#081 · 
#084 · 
#084 · 
#240 · 
#078 · 
#150 · 
#147 · 
#SWSH152
#222
#241 · 
#223
#221
#SWSH178
#125 · 
#189 · 
#155 ·
#123 · 
#087 ·
#122 · 
#124 · 
#088 ·
#190 ·
Frequently asked questions
What will I get for Professor's Research Black Bolt 085/86 if I want to sell quickly?
Half of all sales fell between $0.95 and $1.68, with a median of $1.47. 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 Black Bolt 085/86 unrealistic?
The cheapest genuine sales were around $0.68. Offers well below $0.41 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.