FairValue

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  • EnvironmentOverviewWhat FairValue measures, what it found, where to go next.
  • EnvironmentTerminalExplore, compare and track players; market, league and model views.
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Grégoire

Coudert

GKFrance · Stade Brestois 29

№ 525155Established €3.3M +0.18

Player dossierLigue 1

GrégoireCoudert

GKGoalkeeperGoalkeeper

Club
Stade Brestois 29
League
Ligue 1
Nationality
France
Age
27
Height
192 cm
Foot
Left
Valued
1 Jun 2026

Reading the valuation

The market values Coudert at €4M. Model A, which never saw Coudert during training, estimates €3.3M: the market value is 20% above that estimate.

That is a factor of ×1.20. 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 €3.3M, 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.

▲ +0.18A €3.3M▲ +0.18B €3.3M
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
28
Minutes
2,461
Started
27/28
Min / app
88
Cards
2Y 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 Coudert…

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 €4M

Checking API
EmergingEstablishedEliteWorld Class€2M€10M€30M€100k€1M€100MMarket €4MModel A €3.3M

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 485 goalkeepers

Grégoire Coudert's percentiles among goalkeepers: Minutes, two years 46th, Starts 16th, Minutes, last 365 days 62nd, European club minutes 67th46thMinutes16thStarts62ndRecent67thEurope

Dashed ring: the goalkeeper median (50th percentile)

European club minutes

Share of minutes played in UEFA club competitions.

4% this player0% goalkeeper median67th percentile

0%peer deciles · median line · this player ●86%

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
€150k
May 2018
Peak
€4M
Jun 2026
Model target
€4M
Jun 2026
Valuations
17
2 club changes
Jun 2026€4MStade Brestois 29Valuation the model is trained to reproduce

Jun 2026: €4M, Stade Brestois 29. Dotted lines mark the €2M, €10M and €30M tier boundaries.

Show as a table
DateMarket valueClub
2018-05-16€150kTours FC
2019-06-28€150kTours FC
2020-08-03€150kAmiens SC
2020-11-11€150kAmiens SC
2021-06-25€200kAmiens SC
2021-12-16€200kStade Brestois 29
2022-05-30€200kStade Brestois 29
2022-11-02€200kStade Brestois 29
2023-06-27€150kStade Brestois 29
2023-12-18€150kStade Brestois 29
2024-03-19€400kStade Brestois 29
2024-06-03€400kStade Brestois 29
2024-12-10€400kStade Brestois 29
2025-06-03€500kStade Brestois 29
2025-12-15€800kStade Brestois 29
2026-03-27€3MStade Brestois 29
2026-06-01€4MStade Brestois 29

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
+0.183

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 →

Ligue 1423 players · median €5M

Valued above 37% of the 423 Ligue 1 players.

€100k€750k€5M€30M€4MSee them in the Explorer →

Goalkeepers, all leagues485 players · median €1M

Valued above 75% of the 485 goalkeepers.

€20k€200k€2M€20M€4MSee them in the Explorer →

Where Coudert 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).