Professor's Research

Prismatic Evolutions · 122/131 ·Common

Illustration: Hideki Ishikawa →

Variant Poké Ball · 122 $2.10

Promo Professor Program · 122 —

Market price

$1.74

based on 6 sales

Price history · RAW

2026-04-08 · $1.03 $3.88 · 2026-10-01

Cross-market · RAW median per marketplace

Spread vs. cheapest market — before shipping/duty/fees

ebay.nl	n=2	$2.85	+165%
ebay.es	n=10	$2.15	+100%
ebay.de	n=20	$1.73	+61%
ebay.com	n=15	$1.08	—

Price per print

🇩🇪 Normal · DE n=2 $1.77

🇬🇧 Normal · EN n=13 $1.74

How is this value calculated?

Direct market value · $1.74

Recency-weighted trimmed median of 6 NM sales (RAW; outliers trimmed against the median, newer sales weigh more, dynamic half-life).

Ladder estimate · English · ~$1.74 gruen

Evidence path	Sales	Age	Value vᵢ	Weight gᵢ
eigene rohe NM-Verkäufe	6	2 mo	$1.74	48.98

value = exp( Σ gᵢ·ln vᵢ ⁄ Σ gᵢ ) = $1.74 · Σ g = 48.98

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

Ladder estimate · Deutsch · ~$1.77 gruen

Evidence path	Sales	Age	Value vᵢ	Weight gᵢ
en roh NM × 1.0187 (Sprach-Faktor aus 92 Karten)	6	2 mo	$1.77	2.79

value = exp( Σ gᵢ·ln vᵢ ⁄ Σ gᵢ ) = $1.77 · Σ g = 2.79

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

Ladder estimate · Français · ~$1.94 gelb

Evidence path	Sales	Age	Value vᵢ	Weight gᵢ
en roh NM × 1.3193 (Sprach-Faktor aus 58 Karten) · Set -24% nachgeführt	6	2 mo	$1.94	1.23

value = exp( Σ gᵢ·ln vᵢ ⁄ Σ gᵢ ) = $1.94 · Σ g = 1.23

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

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

Ladder estimate · Italiano · ~$1.83 gruen

Evidence path	Sales	Age	Value vᵢ	Weight gᵢ
en roh NM × 1.0537 (Sprach-Faktor aus 41 Karten)	6	2 mo	$1.83	2.51

value = exp( Σ gᵢ·ln vᵢ ⁄ Σ gᵢ ) = $1.83 · Σ g = 2.51

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

PSA Population EN Σ 20

PSA 10

2 10%

PSA 9

9 45%

PSA 8

7 35%

PSA ≤7

2 10%

PSA · Professor Program · as of 2026-10-08

Recent sales · 50

2026-10-01	DE	RAW UNKNOWN	Forschung des Professors 122/131 Prismatische Entwicklungen · eBay	$1.12
2026-09-28	EN	RAW UNKNOWN	Professor's Research [Professor Oak] 122/131 Sv: Prismatic E · eBay	$1.48
2026-09-28	EN	RAW NM	Professor's Research 122/131 Prismatic Evolutions Pokemon Re · eBay	$1.67
2026-07-29	EN	RAW NM	Professor's Research [Professor Oak] 122/131 Prismatic Evolu · eBay	$1.73
2026-07-29	EN	RAW LP	Professor's Research Oak 122/131 Pokemon Prismatic Evolution · eBay	$1.87
2026-07-29	EN	RAW NM	Professor's Research [Professor Oak] 122/131 Prismatic Pokem · eBay	$1.74
2026-07-26	EN	RAW UNKNOWN	(REVERSE HOLO) Professor’s Research - 122/131 - Prismatic Ev · eBay	$2.94
2026-07-24	EN	RAW NM	Professor's Research 122/131 Common Prismatic Evolutions Pok · eBay	$2.33
2026-07-22	EN	RAW NM	Professor's Research [Profe 122/131 Prismatic Evolutions Pok · eBay	$1.03
2026-07-19	EN	RAW NM	PROFESSOR'S RESEARCH OAK 122/131 PRISMATIC EVOLUTIONS POKEMO · eBay	$2.45
2026-07-19	DE	RAW NM	Forschung des Professors Prof. Eich 122/131 Reverse Holo NM · eBay	$1.24
2026-07-18	FR	RAW UNKNOWN	Carte Pokémon Dresseur Recherches Professorales 122/131 Reve · eBay	$1.12
2026-07-11	EN	RAW UNKNOWN	Professor's Research [Professor Oak] - 122/131 - Common - Re · eBay	$1.03
2026-07-10	EN	RAW NM	Professor's Research [Professor Oak] 122/131 Prismatic Pokem · eBay	$1.73
2026-07-06	EN	RAW NM	Pokemon Professor's Research Prismatic Evolutions 122/131 Re · eBay	$1.03
2026-07-06	EN	RAW NM	Professor's Research Oak 122/131 Prismatic Evolutions Pokemo · eBay	$1.03
2026-07-01	EN	RAW UNKNOWN	Pokemon Card - Professor's Research [Oak] - (122/131 - Prism · eBay	$1.03
2026-06-30	EN	RAW NM	PROFESSOR'S RESEARCH [PROFESSOR OAK] 122/131 PRISMATIC EVOLU · eBay	$1.61
2026-06-30	EN	RAW NM	Professor's Research [Professor Oak] 122/131 Prismatic Rever · eBay	$2.11
2026-06-29	EN	RAW UNKNOWN	Professor’s Research - 122/131 - Prismatic Evolutions - Spie · eBay	$2.10

Frequently asked questions

What will I get for Professor's Research Prismatic Evolutions 122/131 if I want to sell quickly?

Half of all sales fell between $1.12 and $2.21, with a median of $1.66. 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 Professor's Research Prismatic Evolutions 122/131 unrealistic?

The cheapest genuine sales were around $1.03. Offers well below $0.62 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.