Professor Elm’s Training Method · League Promo
Market price
£6.71
based on 1 sales
How is this value calculated?
Ladder estimate · English
· ~£1.72
gruen
| Evidence path | Sales | Age | Value vᵢ | Weight gᵢ |
|---|---|---|---|---|
| eigene rohe NM-Verkäufe · Set +11% nachgeführt | 3 | 3 mo | £1.68 | 24.49 |
| eigene LP-Verkäufe ÷ 0.8401 | 3 | 28 d | £2.55 | 1.63 |
value = exp( Σ gᵢ·ln vᵢ ⁄ Σ gᵢ ) = £1.72 · Σ g = 26.12
Measured error for this era×language (backtest): ±19 %
Ladder estimate · Deutsch
· ~£0.46
rot
| Evidence path | Sales | Age | Value vᵢ | Weight gᵢ |
|---|---|---|---|---|
| en roh NM × 0.2736 (Sprach-Faktor aus 19 Karten) · Set +12% nachgeführt | 3 | 3 mo | £0.46 | 0.31 |
value = exp( Σ gᵢ·ln vᵢ ⁄ Σ gᵢ ) = £0.46 · Σ g = 0.31
Measured error for this era×language (backtest): ±27 %
Gate not green — shown only here, never as the price.
PSA Population
No PSA numbers for this print yet — in any language.
Recent sales · 1
| 2026-09-28 | EN | RAW LP | POKEMON PROFESSOR ELM'S TRAINING METHOD LEAGUE PROMO 100/123 · eBay | £6.71 |
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Frequently asked questions
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.
Professor Elm’s Training Method · League Promo HeartGold SoulSilver · 100/123