Gym Badge
| ebay.de | n=7 | £15.49 | +10% |
| ebay.com | n=12 | £14.04 | — |
How is this value calculated?
Recency-weighted trimmed median of 9 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 | 9 | 55 d | £14.39 | 73.47 |
| eigene LP-Verkäufe ÷ 0.7302 | 4 | 49 d | £18.18 | 2.37 |
Measured error for this era×language (backtest): ±19 %
| Evidence path | Sales | Age | Value vᵢ | Weight gᵢ |
|---|---|---|---|---|
| en roh NM × 0.7705 (Sprach-Faktor aus 20 Karten) | 9 | 55 d | £11.09 | 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 |
|---|---|---|---|---|
| en roh NM × 0.5336 (Sprach-Faktor aus 27 Karten) · Set -41% nachgeführt | 9 | 55 d | £5.65 | 0.3 |
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) | 9 | 55 d | £15.64 | 12.0 |
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.
#XY203 · C
#XY134 · C
#XY185 · C
#XY197 · C
#XY195 · C
#XY205 · C
#XY174 · C
#XY120 · C
#XY200 · C
#XY181 · C
#XY194 · C
#XY180 · C
#XY187 · C
#XY167 · C
Frequently asked questions
What will I get for Gym Badge XY Black Star Promos XY209/211 if I want to sell quickly?
Half of all sales fell between £12.34 and £18.07, with a median of £14.50. 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 XY209/211 unrealistic?
The cheapest genuine sales were around £10.02. Offers well below £6.01 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.