Jaka

Bijol

CBSlovenia · Leeds United

№ 371851Elite €19.2M +0.04

Image: FootyLogos

Player dossierPremier League

JakaBijol

CBCentre-BackDefender

Club: Leeds United
League: Premier League
Nationality: Slovenia
Age: 27
Height: 190 cm
Foot: Right
Valued: 3 Jun 2026

Reading the valuation

The market values Bijol at €20M. Model A, which never saw Bijol during training, estimates €19.2M: the market value is 4% above that estimate.

That is a factor of ×1.04. 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 €9.5M, 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: 68
Minutes: 5,637
Goals: 3
Assists: 5
Started: 64/68
Min / app: 83
Cards: 18Y 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 Bijol…

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 €20M

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, two years

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

5,637 this player2,860 defender median90th percentile

451peer deciles · median line · this player ●9,111

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: €100k; Jul 2017
Peak: €20M; Jun 2026
Model target: €20M; Jun 2026
Valuations: 22; 5 club changes

Jun 2026€20MLeeds UnitedValuation the model is trained to reproduce

Jun 2026: €20M, Leeds United. Dotted lines mark the €2M, €10M and €30M tier boundaries.

Show as a table

Date	Market value	Club
2017-07-16	€100k	NK Rudar Velenje
2018-02-21	€200k	NK Rudar Velenje
2018-07-01	€500k	CSKA Moscow
2018-10-15	€1M	CSKA Moscow
2018-12-20	€1.8M	CSKA Moscow
2019-06-14	€2.5M	CSKA Moscow
2019-12-23	€2.8M	CSKA Moscow
2020-04-08	€2.5M	CSKA Moscow
2020-07-29	€2.5M	CSKA Moscow
2021-02-08	€2.5M	Hannover 96
2021-06-16	€2.5M	Hannover 96
2021-12-29	€3.5M	CSKA Moscow
2022-06-02	€3.5M	CSKA Moscow
2022-11-11	€10M	Udinese Calcio
2023-06-15	€10M	Udinese Calcio
2023-12-20	€10M	Udinese Calcio
2024-06-05	€10M	Udinese Calcio
2024-07-18	€15M	Udinese Calcio
2024-12-18	€18M	Udinese Calcio
2025-06-17	€18M	Udinese Calcio
2025-12-09	€18M	Leeds United
2026-06-03	€20M	Leeds United

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: +0.041

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 →

Premier League555 players · median €18M

Valued above 54% of the 555 Premier League players.

See them in the Explorer →

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

Valued above 91% of the 2,065 defenders.

See them in the Explorer →

Where Bijol appears

TerminalPremier League in the Player Explorer
TerminalPremier 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).