Gym Badge
| ebay.fr | n=2 | £26.43 | +101% |
| ebay.de | n=10 | £20.79 | +58% |
| ebay.com | n=5 | £13.16 | — |
How is this value calculated?
Recency-weighted trimmed median of 1 NM sales (RAW; outliers trimmed against the median, newer sales weigh more, dynamic half-life).
| Evidence path | Sales | Age | Value vᵢ | Weight gᵢ |
|---|---|---|---|---|
| eigene LP-Verkäufe ÷ 0.7239 | 7 | 43 d | £30.95 | 2.53 |
Measured error for this era×language (backtest): ±19 %
| Evidence path | Sales | Age | Value vᵢ | Weight gᵢ |
|---|---|---|---|---|
| en LP ÷ 0.7239 × 0.9078 | 7 | 43 d | £28.10 | 0.99 |
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 LP ÷ 0.7239 × 0.5204 | 7 | 43 d | £16.11 | 0.41 |
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 LP ÷ 0.7239 × 1.0872 | 7 | 43 d | £33.65 | 2.15 |
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 XY210/211 if I want to sell quickly?
Half of all sales fell between £13.16 and £26.02, with a median of £20.16. 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 XY210/211 unrealistic?
The cheapest genuine sales were around £9.35. Offers well below £5.61 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.