FairValue

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

Lutonda

LBBelgium · RAAL La Louvière

№ 416802Emerging €794k −0.28

Player dossierPro League

ThierryLutonda

LBLeft-BackDefender

Club
RAAL La Louvière
League
Pro League
Nationality
Belgium
Age
25
Height
167 cm
Foot
Left
Valued
4 Jun 2026

Reading the valuation

The market values Lutonda at €600k. Model A, which never saw Lutonda during training, estimates €794k: the market value is 24% below that estimate.

That is a factor of ×1.32. 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 €1.3M, 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.

▼ −0.28A €794k▼ −0.79B €1.3M
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
38
Minutes
2,302
Goals
1
Assists
1
Started
26/38
Min / app
61
Cards
3Y 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 Lutonda…

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 €600k

Checking API
EmergingEstablishedEliteWorld Class€2M€10M€30M€100k€1M€100MMarket €600kModel A €794k

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

Thierry Lutonda's percentiles among defenders: Goals per 90 56th, Assists per 90 50th, Minutes, two years 40th, Starts 25th, Minutes, last 365 days 52nd, European club minutes 30th56thGoals50thAssists40thMinutes25thStarts52ndRecent30thEurope

Dashed ring: the defender median (50th percentile)

Goals per 90

Club goals per 90 minutes played in the two years to the valuation date.

0.04 this player0.03 defender median56th percentile

0.00peer deciles · median line · this player ●0.41

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
€400k
Jul 2019
Peak
€600k
Jun 2023
Model target
€600k
Jun 2026
Valuations
20
3 club changes
Jun 2026€600kRAAL La LouvièreValuation the model is trained to reproduce

Jun 2026: €600k, RAAL La Louvière. Dotted lines mark the €2M, €10M and €30M tier boundaries.

Show as a table
DateMarket valueClub
2019-07-24€400kRSC Anderlecht
2019-12-13€400kRSC Anderlecht
2020-04-08€350kRSC Anderlecht
2020-10-14€350kRKC Waalwijk
2021-01-06€300kRKC Waalwijk
2021-05-19€300kRKC Waalwijk
2022-01-05€300kRKC Waalwijk
2022-06-08€250kRKC Waalwijk
2022-09-14€325kRKC Waalwijk
2022-11-11€400kRKC Waalwijk
2023-03-17€550kRKC Waalwijk
2023-06-23€600kRKC Waalwijk
2023-10-17€500kRKC Waalwijk
2023-12-15€400kRKC Waalwijk
2024-05-31€400kRKC Waalwijk
2024-12-17€350kPEC Zwolle
2025-05-28€300kPEC Zwolle
2025-10-01€450kRAAL La Louvière
2025-12-10€600kRAAL La Louvière
2026-06-04€600kRAAL La Louvière

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
−0.280

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 →

Pro League350 players · median €1.8M

Valued above 13% of the 350 Pro League players.

€100k€750k€5M€30M€600kSee them in the Explorer →

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

Valued above 22% of the 2,065 defenders.

€20k€200k€2M€20M€600kSee them in the Explorer →

Where Lutonda 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).