YannickCappelle

LBLeft-BackDefender

Club: Zulte Waregem
League: Pro League
Nationality: Belgium
Age: 22
Height: 180 cm
Foot: Left
Valued: 4 Jun 2026

Reading the valuation

The market values Cappelle at €650k. Model A, which never saw Cappelle during training, estimates €1.2M: the market value is 44% below that estimate.

That is a factor of ×1.79. 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 €1.6M, 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.

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: 30
Minutes: 2,016
Goals: 1
Assists: 1
Started: 22/30
Min / app: 67
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 Cappelle…

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 €650k

Checking API

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

Dashed ring: the defender median (50th percentile)

Minutes, last 365 days

Club minutes in the final year of the window: recent involvement, or the absence of it.

2,016 this player1,687 defender median62nd percentile

0peer deciles · median line · this player ●4,941

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: €25k; Oct 2023
Peak: €800k; Dec 2025
Model target: €650k; Jun 2026
Valuations: 8; 0 club changes

Jun 2026€650kZulte WaregemValuation the model is trained to reproduce

Jun 2026: €650k, Zulte Waregem. Dotted lines mark the €2M, €10M and €30M tier boundaries.

Show as a table

Date	Market value	Club
2023-10-02	€25k	Zulte Waregem
2023-12-28	€150k	Zulte Waregem
2024-06-20	€150k	Zulte Waregem
2024-12-20	€150k	Zulte Waregem
2025-04-24	€250k	Zulte Waregem
2025-10-01	€500k	Zulte Waregem
2025-12-10	€800k	Zulte Waregem
2026-06-04	€650k	Zulte Waregem

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: −0.581

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 18% of the 350 Pro League players.

See them in the Explorer →

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

Valued above 25% of the 2,065 defenders.

See them in the Explorer →

Where Cappelle appears

TerminalPro League in the Player Explorer
TerminalPro League on the League Landscape

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).