| ebay.co.uk | n=2 | £131.70 | +790% |
| ebay.it | n=2 | £20.92 | +41% |
| ebay.de | n=9 | £17.46 | +18% |
| ebay.com | n=11 | £14.80 | — |
How is this value calculated?
| Evidence path | Sales | Age | Value vᵢ | Weight gᵢ |
|---|---|---|---|---|
| eigene rohe NM-Verkäufe | 7 | 2 mo | £14.92 | 57.14 |
| eigene LP-Verkäufe ÷ 0.7197 | 7 | 34 d | £24.33 | 2.18 |
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) | 7 | 2 mo | £14.18 | 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 |
|---|---|---|---|---|
| en roh NM × 0.4836 (Sprach-Faktor aus 18 Karten) | 7 | 2 mo | £7.22 | 1.94 |
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) | 7 | 2 mo | £16.22 | 11.47 |
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.
| 2026-09-19 | EN | RAW LP | Gym Badge (Brock) XY203 Holo Promo XY Promo Pokémon LP · eBay | £17.62 |
| 2026-09-16 | EN | RAW UNKNOWN | Gym Badge (Brock) XY203 Holo Promo XY Promo Pokemon · eBay | £17.61 |
| 2026-08-28 | EN | RAW UNKNOWN | Gym Badge (Brock) XY203 Holo Promo XY Promo Pokemon · eBay | £17.46 |
| 2026-08-28 | EN | RAW LP | Gym Badge (Brock) XY203 Pokemon TCG XY Promos LP · eBay | £12.18 |
| 2026-08-27 | EN | RAW HP | Gym Badge (Brock) XY203 - Promo Holo Stamped - XY Black Star · eBay | £4.41 |
| 2026-08-23 | IT | RAW NM | Pokemon XY Promos Gym Badge 2017 Sealed #XY203 · eBay | £38.13 |
| 2026-08-20 | EN | RAW HP | Gym Badge (Brock) XY203 - Promo Holo Stamped - XY Black Sta · eBay | £3.71 |
| 2026-08-11 | EN | RAW LP | Gym Badge (Brock) XY203 Holo Promo XY Promo Pokemon Lightly · eBay | £17.46 |
| 2026-08-10 | EN | RAW NM | Gym Badge (Brock) XY203 Holo Promo XY Promo Pokemon Near Min · eBay | £17.47 |
| 2026-08-08 | EN | RAW LP | Gym Badge (Koga) XY207 & Gym Badge (Brock) XY203 Promo Pokem · eBay | £22.12 |
| 2026-08-01 | EN | RAW LP | Gym Badge (Brock) - XY203 Pokemon Card XY Promos NM/LP · eBay | £14.80 |
| 2026-07-22 | EN | RAW NM | TQG 9.5 MINT+ 2016 Pokemon ENG Gym Badge #XY203 PROMO · eBay | £8.44 |
| 2026-07-14 | FR | RAW LP | Pokemon Kanto 8 Gym Trainer Badge Set XY203 - XY210 All LP B · eBay | £247.62 |
| 2026-07-13 | EN | RAW NM | Gym Badge (Brock) PR XY Promos #XY203 Promo Holo NM | £14.88 |
| 2026-07-12 | EN | RAW NM | Pokemon TCG: XY Black Star Promo XY203: Gym Badge Brock Boul | £26.03 |
| 2026-07-04 | EN | RAW UNKNOWN | Pokemon TCG Gym Badge Brock XY203 Black Star Promo | £13.36 |
| 2026-07-01 | EN | RAW NM | Pokemon TCG Gym Badge Brock XY203 Black Star Promo NM | £15.78 |
| 2026-06-14 | EN | RAW NM | Gym Badge (Brock) XY203 Holo Promo XY Promo Pokemon Near Min | £14.69 |
| 2026-06-14 | UNKNOWN | RAW NM | Pokemon TCG Gym Badge (Brock) XY203 XY Promo Sealed 10er Pac | £346.35 |
| 2026-06-13 | ES | RAW UNKNOWN | Gym Badge (Brock) Holo Promo XY Promos #XY203 | £13.34 |
#XY204 · C
#XY208 · C
#XY210 · C
#XY206 · 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 XY203/211 if I want to sell quickly?
Half of all sales fell between £13.34 and £22.12, with a median of £15.78. 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 XY203/211 unrealistic?
The cheapest genuine sales were around £8.44. Offers well below £5.06 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.