| ebay.fr | n=2 | $70.13 | +145% |
| ebay.de | n=9 | $33.56 | +17% |
| ebay.com | n=13 | $31.35 | +9% |
| ebay.co.uk | n=3 | $28.66 | — |
How is this value calculated?
Recency-weighted trimmed median of 6 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 | $32.83 | 48.98 |
| eigene LP-Verkäufe ÷ 0.7386 | 4 | 42 d | $52.37 | 2.79 |
Measured error for this era×language (backtest): ±19 %
| Evidence path | Sales | Age | Value vᵢ | Weight gᵢ |
|---|---|---|---|---|
| en roh NM × 0.8391 (Sprach-Faktor aus 19 Karten) | 6 | 3 mo | $27.54 | 1.37 |
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 | $70.13 | 16.33 |
| en roh NM × 0.5269 (Sprach-Faktor aus 18 Karten) | 6 | 3 mo | $17.30 | 0.31 |
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 | $35.69 | 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.
Frequently 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 $28.66 and $46.28, with a median of $33.56. 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 $24.50. Offers well below $14.70 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.