Professor's Research

Scarlet & Violet · 190/198 ·Rare

Illustration: kirisAki → All Professor Program cards →

Professor Program €46,50 2 sales Reverse Holo €1,36 17 sales Normal €0,93 41 sales

Market price

€41,71

Price history · RAW

2026-05-03 · €0,14 €46,50 · 2026-06-08

How is this value calculated?

Ladder estimate · English · ~€0,93 gruen

Evidence path	Sales	Age	Value vᵢ	Weight gᵢ
eigene rohe NM-Verkäufe	10	22 d	€0,93	81.63

value = exp( Σ gᵢ·ln vᵢ ⁄ Σ gᵢ ) = €0,93 · Σ g = 81.63

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

Ladder estimate · Deutsch · ~€4,50 gruen

Evidence path	Sales	Age	Value vᵢ	Weight gᵢ
eigene rohe NM-Verkäufe · Set +23% nachgeführt	2	52 d	€8,20	16.33
en roh NM × 0.8185 (Sprach-Faktor aus 71 Karten)	10	22 d	€0,76	5.49

value = exp( Σ gᵢ·ln vᵢ ⁄ Σ gᵢ ) = €4,50 · Σ g = 21.82

Measured error for this era×language (backtest): ±19 %

Ladder estimate · Français · ~€1,04 gelb

Evidence path	Sales	Age	Value vᵢ	Weight gᵢ
en roh NM × 1.1261 (Sprach-Faktor aus 61 Karten)	10	22 d	€1,04	8.34

value = exp( Σ gᵢ·ln vᵢ ⁄ Σ gᵢ ) = €1,04 · Σ g = 8.34

Measured error for this era×language (backtest): ±25 %

Gate not green — shown only here, never as the price.

Ladder estimate · Italiano · ~€1,06 gruen

Evidence path	Sales	Age	Value vᵢ	Weight gᵢ
en roh NM × 1.1466 (Sprach-Faktor aus 55 Karten)	10	22 d	€1,06	10.01

value = exp( Σ gᵢ·ln vᵢ ⁄ Σ gᵢ ) = €1,06 · Σ g = 10.01

Measured error for this era×language (backtest): ±17 %

PSA Population

No PSA numbers for this print yet — in any language.

Recent sales · 3

2026-06-08	EN	RAW UNKNOWN	Professor's Research - (2023) 190/198 Professor Program Reve	€46,50
2026-05-05	UNKNOWN	RAW NM	Professor's Research - 190/198 (2023) [Professor Program Pro	€22,57
2026-05-03	EN	RAW UNKNOWN	Professor Program Promos #190/198 Professor's Research	€0,14

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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.