FairValue

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Thibaut

Courtois

GKBelgium · Real Madrid

№ 108390Elite €6.3M +0.86

Player dossierLaLiga

ThibautCourtois

GKGoalkeeperGoalkeeper

Club
Real Madrid
League
LaLiga
Nationality
Belgium
Age
34
Height
199 cm
Foot
Left
Valued
5 Jun 2026

Reading the valuation

The market values Courtois at €15M. Model A, which never saw Courtois during training, estimates €6.3M: the market value is 136% above that estimate.

That is a factor of ×2.36. Model A's typical held-out miss is ×1.50 either way, so this gap is larger than its usual error.

Without league and club, Model B estimates €6.1M, 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.

▲ +0.86A €6.3M▲ +0.90B €6.1M
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
97
Minutes
8,745
Started
97/97
Min / app
90
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 Courtois…

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 €15M

Checking API
EmergingEstablishedEliteWorld Class€2M€10M€30M€100k€1M€100MMarket €15MModel A €6.3M

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

Thibaut Courtois's percentiles among goalkeepers: Minutes, two years 99th, Starts 62nd, Minutes, last 365 days 99th, European club minutes 94th99thMinutes62ndStarts99thRecent94thEurope

Dashed ring: the goalkeeper median (50th percentile)

Minutes, two years

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

8,745 this player2,790 goalkeeper median99th percentile

450peer deciles · median line · this player ●9,210

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
May 2009
Peak
€75M
Oct 2020
Model target
€15M
Jun 2026
Valuations
46
4 club changes
Jun 2026€15MReal MadridValuation the model is trained to reproduce

Jun 2026: €15M, Real Madrid. Dotted lines mark the €2M, €10M and €30M tier boundaries.

Show as a table
DateMarket valueClub
2009-05-27€50kKRC Genk U19
2010-07-28€150kKRC Genk
2010-10-06€1MKRC Genk
2010-12-28€2MKRC Genk
2011-05-24€3MKRC Genk
2011-06-28€4MKRC Genk
2011-07-29€6MAtlético de Madrid
2012-02-03€9MAtlético de Madrid
2012-08-01€15MAtlético de Madrid
2013-01-10€15MAtlético de Madrid
2013-06-12€18MAtlético de Madrid
2013-09-17€25MAtlético de Madrid
2014-01-23€25MAtlético de Madrid
2014-08-12€25MChelsea FC
2015-02-12€30MChelsea FC
2015-07-01€35MChelsea FC
2016-02-09€35MChelsea FC
2016-06-01€35MChelsea FC
2016-08-01€35MChelsea FC
2017-02-20€40MChelsea FC
2017-06-28€40MChelsea FC
2018-01-02€50MChelsea FC
2018-03-23€60MChelsea FC
2018-05-28€60MChelsea FC
2018-07-16€65MChelsea FC
2018-12-21€65MReal Madrid
2019-06-11€55MReal Madrid
2019-12-20€55MReal Madrid
2020-03-05€60MReal Madrid
2020-04-08€48MReal Madrid
2020-07-23€60MReal Madrid
2020-10-08€75MReal Madrid
2021-01-05€75MReal Madrid
2021-05-26€60MReal Madrid
2021-12-30€65MReal Madrid
2022-06-03€60MReal Madrid
2022-11-07€60MReal Madrid
2023-06-13€45MReal Madrid
2023-12-22€35MReal Madrid
2024-03-21€30MReal Madrid
2024-06-07€28MReal Madrid
2024-10-11€25MReal Madrid
2024-12-27€25MReal Madrid
2025-06-09€20MReal Madrid
2025-12-12€18MReal Madrid
2026-06-05€15MReal Madrid

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
+0.860

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 80% of the 509 LaLiga players.

€100k€1M€10M€100M€15MSee them in the Explorer →

Goalkeepers, all leagues485 players · median €1M

Valued above 92% of the 485 goalkeepers.

€20k€200k€2M€20M€15MSee them in the Explorer →

Where Courtois 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).