Arthur
Piedfort
DMBelgium · KVC Westerlo
Player dossierPro League
ArthurPiedfort
DMDefensive MidfieldMidfield
- Club
- KVC Westerlo
- League
- Pro League
- Nationality
- Belgium
- Age
- 21
- Height
- 186 cm
- Foot
- Right
- Valued
- 4 Jun 2026
Reading the valuation
The market values Piedfort at €4M. Model A, which never saw Piedfort during training, estimates €6.8M: the market value is 42% below that estimate.
That is a factor of ×1.71. 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 €6.4M, closer to the market here, although it is usually further off (typical miss ×2.07).
A gap describes the model's arithmetic for this player's inputs, not what the player is worth.
- Apps
- 56
- Minutes
- 4,392
- Goals
- 3
- Assists
- 4
- Started
- 53/56
- Min / app
- 78
- Cards
- 7Y 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 Piedfort…
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 APIAsking 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 1,687 midfielders
Dashed ring: the midfielder median (50th percentile)
Starts
Share of appearances started rather than entered from the bench.
95% this player69% midfielder median93rd percentile
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
- €250k
- Oct 2023
- Peak
- €4M
- Jun 2026
- Model target
- €4M
- Jun 2026
- Valuations
- 11
- 0 club changes
Jun 2026: €4M, KVC Westerlo. Dotted lines mark the €2M, €10M and €30M tier boundaries.
Show as a table
| Date | Market value | Club |
|---|---|---|
| 2023-10-23 | €250k | KVC Westerlo |
| 2023-12-19 | €600k | KVC Westerlo |
| 2024-03-22 | €1.5M | KVC Westerlo |
| 2024-06-04 | €2.5M | KVC Westerlo |
| 2024-10-02 | €3.5M | KVC Westerlo |
| 2024-12-11 | €3.2M | KVC Westerlo |
| 2025-03-26 | €2.5M | KVC Westerlo |
| 2025-06-12 | €2M | KVC Westerlo |
| 2025-12-10 | €2.2M | KVC Westerlo |
| 2026-03-13 | €3.5M | KVC Westerlo |
| 2026-06-04 | €4M | KVC Westerlo |
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
- −0.537
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 78% of the 350 Pro League players.
See them in the Explorer →Midfielders, all leagues1,687 players · median €2M
Valued above 61% of the 1,687 midfielders.
See them in the Explorer →Where Piedfort appears
Watchlists and the comparison tray are kept in this browser only.
Near this valuation closest observed values: same league, then same position
- JanssenCFRoyal Antwerp FC · Pro League€4M
- BertacciniCFRSC Anderlecht · Pro League€4M
- SkorasLWKAA Gent · Pro League€4M
- SikanCFRSC Anderlecht · Pro League€4M
- BarkleyCMAston Villa · midfielders€4M
- EndoDMLiverpool FC · midfielders€4M
- ThomassonCMRC Lens · midfielders€4M
- KarlströmDMUdinese Calcio · midfielders€4M
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).