Gym Badge
| ebay.de | n=7 | $20.55 | +8% |
| ebay.com | n=11 | $19.08 | — |
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 | 53 d | $19.10 | 73.47 |
| eigene LP-Verkäufe ÷ 0.7472 | 4 | 47 d | $23.57 | 2.4 |
Measured error for this era×language (backtest): ±19 %
| Evidence path | Sales | Age | Value vᵢ | Weight gᵢ |
|---|---|---|---|---|
| en roh NM × 0.744 (Sprach-Faktor aus 20 Karten) | 9 | 53 d | $14.21 | 1.07 |
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 × 0.553 (Sprach-Faktor aus 20 Karten) · Set -51% nachgeführt | 9 | 53 d | $7.09 | 0.4 |
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 | 53 d | $20.75 | 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.
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 $17.26 and $23.97, with a median of $19.86. 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 $13.29. Offers well below $7.97 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.