| ebay.fr | n=2 | £52.92 | +145% |
| ebay.de | n=10 | £27.93 | +29% |
| ebay.com | n=13 | £23.66 | +9% |
| ebay.co.uk | n=3 | £21.62 | — |
How is this value calculated?
| Evidence path | Sales | Age | Value vᵢ | Weight gᵢ |
|---|---|---|---|---|
| eigene rohe NM-Verkäufe | 6 | 3 mo | £26.30 | 48.98 |
| eigene LP-Verkäufe ÷ 0.7204 | 5 | 26 d | £48.54 | 2.16 |
Measured error for this era×language (backtest): ±19 %
| Evidence path | Sales | Age | Value vᵢ | Weight gᵢ |
|---|---|---|---|---|
| en roh NM × 0.9509 (Sprach-Faktor aus 21 Karten) | 6 | 3 mo | £25.02 | 1.27 |
Measured error for this era×language (backtest): ±43 %
Gate not green — shown only here, never as the price.
| Evidence path | Sales | Age | Value vᵢ | Weight gᵢ |
|---|---|---|---|---|
| eigene rohe NM-Verkäufe | 2 | 4 mo | £52.92 | 16.33 |
| en roh NM × 0.4836 (Sprach-Faktor aus 18 Karten) | 6 | 3 mo | £12.72 | 1.93 |
Measured error for this era×language (backtest): ±12 %
Gate not green — shown only here, never as the price.
| Evidence path | Sales | Age | Value vᵢ | Weight gᵢ |
|---|---|---|---|---|
| en roh NM × 1.0872 (Sprach-Faktor aus 35 Karten) | 6 | 3 mo | £28.60 | 11.1 |
Measured error for this era×language (backtest): ±14 %
Gate not green — shown only here, never as the price.
No PSA numbers for this print yet — in any language.
#XY204 · C
#XY210 · C
#XY206 · C
#XY203 · C
#XY209 · C
#XY205 · C
#XY207 · C
#104 · U
#074 · U
#159 · U
#155 · U
#151 · U
#147 · U
#XY91Frequently asked questions
What will I get for Gym Badge XY Black Star Promos XY208/211 if I want to sell quickly?
Half of all sales fell between £21.62 and £35.23, with a median of £25.32. 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 Gym Badge XY Black Star Promos XY208/211 unrealistic?
The cheapest genuine sales were around £18.49. Offers well below £11.09 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 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.