FairValue

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Florian

Lejeune

CBFrance · Rayo Vallecano

№ 127108Emerging €1.8M +0.02

Player dossierLaLiga

FlorianLejeune

CBCentre-BackDefender

Club
Rayo Vallecano
League
LaLiga
Nationality
France
Age
35
Height
190 cm
Foot
Right
Valued
5 Jun 2026

Reading the valuation

The market values Lejeune at €1.8M. Model A, which never saw Lejeune during training, estimates €1.8M: the market value is 2% above that estimate.

That is a factor of ×1.02. Model A's typical held-out miss is ×1.50 either way, so this gap is within its usual error.

Without league and club, Model B estimates €1.5M, further from the market. Model B is usually further off (typical miss ×2.07): league and club explain much of how the market prices players.

A gap describes the model's arithmetic for this player's inputs, not what the player is worth.

▲ +0.02A €1.8M▲ +0.18B €1.5M
Pitch length is a log value scale fitted to this player's figures. ● observed · ◇ Model A · dashed ◇ Model B · each arc is a residual, log(observed) − log(estimate).
Apps
79
Minutes
7,024
Goals
4
Assists
4
Started
78/79
Min / app
89
Cards
16Y 0R

Club matches, two years to the valuation date

The Valuation Journey

What moves Model A

Asking the prediction API to explain Model A for Lejeune…

SHAP describes the model's arithmetic for this player's inputs, not what causes market value. Model B can be explained only by the live service; Model A also has a published explanation for the research players.

Model A vs Model B against the observed €1.8M

Checking API
EmergingEstablishedEliteWorld Class€2M€10M€30M€100k€1M€100MMarket €1.8MModel A €1.8M

Asking the prediction API…

Held-out estimates come from cross-validation, with this player outside the training data: the honest comparison. Served models were refitted on every player, this one included, so they sit closer to the market. Shaded band: Model A's typical miss (×1.50 either way).

Player traitspercentiles vs 2,065 defenders

Florian Lejeune's percentiles among defenders: Goals per 90 64th, Assists per 90 58th, Minutes, two years 98th, Starts 94th, Minutes, last 365 days 97th, European club minutes 63rd64thGoals58thAssists98thMinutes94thStarts97thRecent63rdEurope

Dashed ring: the defender median (50th percentile)

Minutes, two years

Total club minutes in the two-year window: how much the player was used.

7,024 this player2,860 defender median98th percentile

451peer deciles · median line · this player ●9,111

No passing, progression or defensive actions exist in the dataset, so no trait claims to measure them.

Valuation history every Transfermarkt valuation on record

First valuation
€50k
Nov 2009
Peak
€8M
May 2018
Model target
€1.8M
Jun 2026
Valuations
39
7 club changes
Jun 2026€1.8MRayo VallecanoValuation the model is trained to reproduce

Jun 2026: €1.8M, Rayo Vallecano. Dotted lines mark the €2M, €10M and €30M tier boundaries.

Show as a table
DateMarket valueClub
2009-11-29€50kFC Istres Ouest Provence
2010-05-17€450kFC Istres Ouest Provence
2010-10-24€750kFC Istres Ouest Provence
2011-02-08€1MFC Istres Ouest Provence
2011-05-30€1MFC Istres Ouest Provence
2011-08-08€1MVillarreal CF
2012-04-30€1MVillarreal CF
2012-08-08€1MVillarreal CF
2013-05-30€900kStade Brestois 29
2013-09-13€750kStade Brestois 29
2014-01-13€500kStade Brestois 29
2014-08-12€200kGirona FC
2015-01-08€600kGirona FC
2015-07-01€800kGirona FC
2016-02-22€800kGirona FC
2016-07-15€1.5MSD Eibar
2017-01-24€3MSD Eibar
2017-06-05€5MSD Eibar
2018-01-02€7MNewcastle United
2018-05-28€8MNewcastle United
2018-12-19€8MNewcastle United
2019-06-13€8MNewcastle United
2019-12-10€6MNewcastle United
2020-04-08€4.8MNewcastle United
2020-10-08€4.5MDeportivo Alavés
2021-01-05€4.2MDeportivo Alavés
2021-06-10€4.5MDeportivo Alavés
2021-10-13€3MDeportivo Alavés
2021-12-30€2.5MDeportivo Alavés
2022-06-03€2MDeportivo Alavés
2022-11-07€3MRayo Vallecano
2023-03-23€4MRayo Vallecano
2023-06-13€4MRayo Vallecano
2023-12-22€3.5MRayo Vallecano
2024-06-07€3MRayo Vallecano
2024-12-27€2.8MRayo Vallecano
2025-06-09€2.5MRayo Vallecano
2025-12-12€2MRayo Vallecano
2026-06-05€1.8MRayo Vallecano

Audit context group-level, not about this player

Audit group
UEFA
Population gap, Model A
+0.093 95% CI +0.063 to +0.124
This player, market vs held-out A
+0.018

The group comes from first-listed citizenship and is never a model input. Across the population, non-UEFA players' market values sit about 10% above Model A's held-out estimates, relative to UEFA players in the same leagues. One player's residual says nothing about that pattern (typical miss ×1.50), and none of it is evidence of discrimination: the target may itself be biased. Open the Fairness Audit

In context observed value among comparable players in this build

All players in the Terminal →

LaLiga509 players · median €4M

Valued above 25% of the 509 LaLiga players.

€100k€1M€10M€100M€1.8MSee them in the Explorer →

Defenders, all leagues2,065 players · median €2M

Valued above 48% of the 2,065 defenders.

€20k€200k€2M€20M€1.8MSee them in the Explorer →

Where Lejeune appears

Watchlists and the comparison tray are kept in this browser only.

Near this valuation closest observed values: same league, then same position

Counts and ranks of observed Transfermarkt values only; model errors are never ranked here. Full player export: Every player in the modelling population (D-011).