Prof. Oak's Research

FireRed & LeafGreen · 98/112 ·Uncommon

Illustration: Ken Sugimori →

Professor Program $150.63 3 sales Normal $2.03 29 sales

Market price

$2.03

Price history · RAW

2026-04-18 · $0.97 $9.37 · 2026-09-29

Cross-market · RAW median per marketplace

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

ebay.es	n=7	$4.68	+36%
ebay.com	n=6	$4.25	+24%
ebay.co.uk	n=6	$3.43	—

Price per print

🇬🇧 Normal · EN n=12 $4.37

How is this value calculated?

Ladder estimate · English · ~$2.03 gelb

Evidence path	Sales	Age	Value vᵢ	Weight gᵢ
eigene rohe NM-Verkäufe · Set +12% nachgeführt	6	2 mo	$1.98	48.98
eigene LP-Verkäufe ÷ 0.8348	6	28 d	$3.37	2.28

value = exp( Σ gᵢ·ln vᵢ ⁄ Σ gᵢ ) = $2.03 · 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 · ~$0.86 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	$0.86	2.91

value = exp( Σ gᵢ·ln vᵢ ⁄ Σ gᵢ ) = $0.86 · 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 · ~$4.60 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	$4.60	1.63

value = exp( Σ gᵢ·ln vᵢ ⁄ Σ gᵢ ) = $4.60 · 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	$2.62
2026-08-20	EN	RAW LP	Prof. Oak's Research 98/112 FireRed & LeafGreen Pokemon · eBay	$4.52
2026-08-02	EN	RAW NM	NM Pokemon Prof. Oak’s Research 98/112 EX FireRed LeafGreen · eBay	$0.97
2026-07-12	EN	RAW UNKNOWN	Pokémon Prof. Oak's Research FireRed & LeafGreen 98/112 Holo · eBay	$6.63
2026-07-12	EN	RAW NM	Prof. Oak's Research Uncommon FireRed & LeafGreen 98/112 NM · eBay	$1.86
2026-07-04	EN	RAW LP	Prof. Oak's Research 98/112 Uncommon FireRed & LeafGreen Pok · eBay	$2.33
2026-06-30	EN	RAW UNKNOWN	Prof. Oak’s Research 98/112 - EX FireRed & LeafGreen Uncommo · eBay	$4.24
2026-06-30	EN	RAW LP	Prof. Oak's Research 98/112 Uncommon FireRed & LeafGreen Pok · eBay	$1.85
2026-06-26	EN	RAW NM	Vintage Pokémon - Prof Oak's Research - FireRed & LeafGreen · eBay	$7.79
2026-06-20	EN	RAW NM	Juego de cartas coleccionables Pokémon EX-NM rojo fuego y ve · eBay	$4.68
2026-06-12	EN	RAW UNKNOWN	Prof. Oak's Research HOLO VINTAGE 98/112 FireRed & LeafGreen · eBay	$7.29
2026-06-10	EN	RAW UNKNOWN	Pokemon Prof. Oak’s Research 98/112 Holograma Inverso EX Roj · eBay	$9.37
2026-06-05	EN	RAW NM	POKEMON PROF. OAK'S RESEARCH 98/112 EX FIRERED & LEAFGREEN U · eBay	$1.04
2026-05-29	EN	RAW NM	Prof. Oak's Research (98/112) [EX: FireRed & LeafGreen] Near	$1.58
2026-05-25	EN	RAW LP	Holograma inverso Prof. Oak's Research 98/112 rojo fuego y v	$4.98
2026-05-20	EN	RAW MP	Juego de cartas coleccionables Pokémon Prof. Oak's Research	$2.57
2026-05-12	EN	RAW LP	POKEMON: Prof. Oak's Research 98/112 HOLO CARD - FIRE RED LE	$7.66
2026-05-01	EN	CGC 10	Pokémon Holograma Inverso CGC 10 Prof. Oak's Research EX Roj	$87.99
2026-04-21	EN	RAW UNKNOWN	Prof. Oak's Research - ex FireRed & LeafGreen 98/112 2004 ca	$2.33
2026-04-18	EN	RAW UNKNOWN	Pokémon Holograma Inverso Prof. Oak's Research 98/112 Rojo F	$9.37

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 $1.86 and $7.29, with a median of $4.24. 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 $1.58. Offers well below $0.95 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.