Mudsdale

SM Black Star Promos · SM20/248 ·Rare

Illustration: Mitsuhiro Arita →

Market price

£6.39

Price history · RAW

2026-05-23 · £4.25 £10.91 · 2026-09-13

Price per print

🇬🇧 Normal · EN n=2 £1.81

How is this value calculated?

Ladder estimate · English · ~£1.81 gruen

Evidence path	Sales	Age	Value vᵢ	Weight gᵢ
eigene rohe NM-Verkäufe	2	36 d	£7.74	16.33

value = exp( Σ gᵢ·ln vᵢ ⁄ Σ gᵢ ) = £7.74 · Σ g = 16.33

Cap: 2× no buyer from £1.90 € → clamped to £1.90 × 0.95 = £1.81 € (ladder said £7.74 €).

Measured error for this era×language (backtest): ±16 %

PSA Population EN Σ 40

PSA 10

4 10%

PSA 9

12 30%

PSA 8

11 28%

PSA ≤7

13 32%

PSA · Guardians Rising Prerelease Staff · as of 2026-10-01

Recent sales · 4

2026-09-13	EN	RAW NM	Mudsdale - SM20 - Guardians Rising - SM Black Star Promos - · eBay	£7.19
2026-09-10	EN	RAW LP	Mudsdale SM20 Promo SM Black Star Promos Pokemon LP · eBay	£6.34
2026-07-09	UNKNOWN	RAW UNKNOWN	Mudsdale SM20 - Sun And Moon - Pokémon Card · eBay	£4.25
2026-05-23	EN	RAW NM	Pokemon Card Mudsdale SM20 Black Star Promo STAMPED Near Min	£10.91

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FAQ

Frequently asked questions

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.