Prof. Oak's Research

FireRed & LeafGreen · 98/112 ·Uncommon

Illustration: Ken Sugimori →

Professor Program £114.11 3 sales Normal £1.54 29 sales

Market price

£1.54

Price history · RAW

2026-04-18 · £0.73 £7.10 · 2026-09-29

Cross-market · RAW median per marketplace

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

ebay.es	n=7	£3.55	+36%
ebay.com	n=6	£3.22	+24%
ebay.co.uk	n=6	£2.60	—

Price per print

🇬🇧 Normal · EN n=12 £3.31

How is this value calculated?

Ladder estimate · English · ~£1.54 gelb

Evidence path	Sales	Age	Value vᵢ	Weight gᵢ
eigene rohe NM-Verkäufe · Set +12% nachgeführt	6	2 mo	£1.50	48.98
eigene LP-Verkäufe ÷ 0.8348	6	28 d	£2.55	2.28

value = exp( Σ gᵢ·ln vᵢ ⁄ Σ gᵢ ) = £1.54 · Σ g = 51.26

Measured error for this era×language (backtest): ±22 %

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

Ladder estimate · Deutsch · ~£0.65 rot

Evidence path	Sales	Age	Value vᵢ	Weight gᵢ
en roh NM × 0.4267 (Sprach-Faktor aus 6 Karten) · Set +16% nachgeführt	6	2 mo	£0.65	2.91

value = exp( Σ gᵢ·ln vᵢ ⁄ Σ gᵢ ) = £0.65 · Σ g = 2.91

Measured error for this era×language (backtest): ±20 %

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

Ladder estimate · Français · ~£3.49 rot

Evidence path	Sales	Age	Value vᵢ	Weight gᵢ
en roh NM × 2.2712 (Sprach-Faktor aus 5 Karten) · Set +16% nachgeführt	6	2 mo	£3.49	1.63

value = exp( Σ gᵢ·ln vᵢ ⁄ Σ gᵢ ) = £3.49 · Σ g = 1.63

Measured error for this era×language (backtest): ±2 %

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

PSA Population EN Σ 94

PSA 10

13 14%

PSA 9

55 59%

PSA 8

15 16%

PSA ≤7

11 12%

PSA + CGC · Professor Program · as of 2026-09-28

Recent sales · 20

2026-09-29	EN	RAW LP	Prof. Oak's Research 98/112 FireRed & LeafGreen Pokemon · eBay	£1.98
2026-08-20	EN	RAW LP	Prof. Oak's Research 98/112 FireRed & LeafGreen Pokemon · eBay	£3.43
2026-08-02	EN	RAW NM	NM Pokemon Prof. Oak’s Research 98/112 EX FireRed LeafGreen · eBay	£0.73
2026-07-12	EN	RAW UNKNOWN	Pokémon Prof. Oak's Research FireRed & LeafGreen 98/112 Holo · eBay	£5.03
2026-07-12	EN	RAW NM	Prof. Oak's Research Uncommon FireRed & LeafGreen 98/112 NM · eBay	£1.41
2026-07-04	EN	RAW LP	Prof. Oak's Research 98/112 Uncommon FireRed & LeafGreen Pok · eBay	£1.77
2026-06-30	EN	RAW UNKNOWN	Prof. Oak’s Research 98/112 - EX FireRed & LeafGreen Uncommo · eBay	£3.21
2026-06-30	EN	RAW LP	Prof. Oak's Research 98/112 Uncommon FireRed & LeafGreen Pok · eBay	£1.40
2026-06-26	EN	RAW NM	Vintage Pokémon - Prof Oak's Research - FireRed & LeafGreen · eBay	£5.90
2026-06-20	EN	RAW NM	Juego de cartas coleccionables Pokémon EX-NM rojo fuego y ve · eBay	£3.55
2026-06-12	EN	RAW UNKNOWN	Prof. Oak's Research HOLO VINTAGE 98/112 FireRed & LeafGreen · eBay	£5.52
2026-06-10	EN	RAW UNKNOWN	Pokemon Prof. Oak’s Research 98/112 Holograma Inverso EX Roj · eBay	£7.10
2026-06-05	EN	RAW NM	POKEMON PROF. OAK'S RESEARCH 98/112 EX FIRERED & LEAFGREEN U · eBay	£0.79
2026-05-29	EN	RAW NM	Prof. Oak's Research (98/112) [EX: FireRed & LeafGreen] Near	£1.20
2026-05-25	EN	RAW LP	Holograma inverso Prof. Oak's Research 98/112 rojo fuego y v	£3.78
2026-05-20	EN	RAW MP	Juego de cartas coleccionables Pokémon Prof. Oak's Research	£1.95
2026-05-12	EN	RAW LP	POKEMON: Prof. Oak's Research 98/112 HOLO CARD - FIRE RED LE	£5.80
2026-05-01	EN	CGC 10	Pokémon Holograma Inverso CGC 10 Prof. Oak's Research EX Roj	£66.66
2026-04-21	EN	RAW UNKNOWN	Prof. Oak's Research - ex FireRed & LeafGreen 98/112 2004 ca	£1.77
2026-04-18	EN	RAW UNKNOWN	Pokémon Holograma Inverso Prof. Oak's Research 98/112 Rojo F	£7.10

Frequently asked questions

What will I get for Prof. Oak's Research FireRed & LeafGreen 98/112 if I want to sell quickly?

Half of all sales fell between £1.41 and £5.52, with a median of £3.21. 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 Prof. Oak's Research FireRed & LeafGreen 98/112 unrealistic?

The cheapest genuine sales were around £1.20. Offers well below £0.72 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.