FairValue

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  • EnvironmentOverviewWhat FairValue measures, what it found, where to go next.
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Thibault De

Smet

LBBelgium · Paris FC

№ 340177Emerging €2.3M −0.26

Player dossierLigue 1

Thibault DeSmet

LBLeft-BackDefender

Club
Paris FC
League
Ligue 1
Nationality
Belgium
Age
27
Height
183 cm
Foot
Left
Valued
1 Jun 2026

Reading the valuation

The market values Smet at €1.8M. Model A, which never saw Smet during training, estimates €2.3M: the market value is 23% below that estimate.

That is a factor of ×1.29. 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 €590k, 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.

▼ −0.26A €2.3M▲ +1.12B €590k
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
22
Minutes
1,338
Goals
0
Assists
1
Started
15/22
Min / app
61
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 Smet…

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 €2.3M

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 2,065 defenders

Thibault De Smet's percentiles among defenders: Goals per 90 18th, Assists per 90 66th, Minutes, two years 19th, Starts 24th, Minutes, last 365 days 32nd, European club minutes 30th18thGoals66thAssists19thMinutes24thStarts32ndRecent30thEurope

Dashed ring: the defender median (50th percentile)

Assists per 90

Club assists per 90 minutes in the same window.

0.07 this player0.04 defender median66th percentile

0.00peer deciles · median line · this player ●0.58

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
Jan 2017
Peak
€4M
Dec 2023
Model target
€1.8M
Jun 2026
Valuations
25
5 club changes
Jun 2026€1.8MParis FCValuation the model is trained to reproduce

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

Show as a table
DateMarket valueClub
2017-01-21€150kKAA Gent
2017-06-06€300kKAA Gent
2018-01-09€250kKAA Gent
2018-06-03€250kKAA Gent
2018-12-27€300kKAA Gent
2019-03-04€500kKAA Gent
2019-06-10€500kKAA Gent
2019-12-13€700kSint-Truidense VV
2020-04-08€625kSint-Truidense VV
2020-08-03€700kStade Reims
2020-10-15€700kStade Reims
2021-06-04€800kStade Reims
2022-01-06€650kBeerschot VA
2022-04-12€450kBeerschot VA
2022-11-02€400kStade Reims
2023-03-27€2.5MStade Reims
2023-06-27€3MStade Reims
2023-12-18€4MStade Reims
2024-06-03€4MStade Reims
2024-10-07€3MStade Reims
2024-12-10€2.5MStade Reims
2025-03-12€2MParis FC
2025-06-02€2.5MParis FC
2025-12-15€2MParis FC
2026-06-01€1.8MParis FC

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
−0.256

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 16% of the 423 Ligue 1 players.

€100k€750k€5M€30M€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 Smet 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).