Mathias
Kjølø
DMNorway · FC Twente Enschede
Player dossierEredivisie
MathiasKjølø
DMDefensive MidfieldMidfield
- Club
- FC Twente Enschede
- League
- Eredivisie
- Nationality
- Norway
- Age
- 24
- Height
- 174 cm
- Foot
- Right
- Valued
- 28 May 2026
EredivisieReading the valuation
The market values Kjølø at €1M. Model A, which never saw Kjølø during training, estimates €2.1M: the market value is 51% below that estimate.
That is a factor of ×2.06. 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 €2.6M, 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.
- Apps
- 53
- Minutes
- 1,859
- Goals
- 0
- Assists
- 1
- Started
- 17/53
- Min / app
- 35
- Cards
- 0Y 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 Kjølø…
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 €1M
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)
European club minutes
Share of minutes played in UEFA club competitions.
15% this player0% midfielder median77th 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
- €25k
- Aug 2020
- Peak
- €5M
- May 2024
- Model target
- €1M
- May 2026
- Valuations
- 19
- 1 club change
May 2026: €1M, FC Twente Enschede. Dotted lines mark the €2M, €10M and €30M tier boundaries.
Show as a table
| Date | Market value | Club |
|---|---|---|
| 2020-08-12 | €25k | PSV Eindhoven U21 |
| 2020-10-24 | €50k | PSV Eindhoven U21 |
| 2020-12-31 | €200k | PSV Eindhoven U21 |
| 2021-03-16 | €250k | PSV Eindhoven U21 |
| 2022-01-12 | €500k | PSV Eindhoven U21 |
| 2022-06-23 | €650k | PSV Eindhoven U21 |
| 2022-09-14 | €900k | FC Twente Enschede |
| 2022-11-11 | €1.2M | FC Twente Enschede |
| 2023-06-23 | €1.2M | FC Twente Enschede |
| 2023-10-17 | €1.8M | FC Twente Enschede |
| 2023-12-15 | €2.8M | FC Twente Enschede |
| 2024-03-18 | €3.5M | FC Twente Enschede |
| 2024-05-31 | €5M | FC Twente Enschede |
| 2024-10-14 | €4M | FC Twente Enschede |
| 2024-12-17 | €2.8M | FC Twente Enschede |
| 2025-03-28 | €1.8M | FC Twente Enschede |
| 2025-05-28 | €1.5M | FC Twente Enschede |
| 2025-12-02 | €1.5M | FC Twente Enschede |
| 2026-05-28 | €1M | FC Twente Enschede |
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
- −0.722
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 →Eredivisie425 players · median €1M
Valued above 46% of the 425 Eredivisie players.
See them in the Explorer →Midfielders, all leagues1,687 players · median €2M
Valued above 32% of the 1,687 midfielders.
See them in the Explorer →Where Kjølø appears
Watchlists and the comparison tray are kept in this browser only.
Near this valuation closest observed values: same league, then same position
- UnnerstallGKFC Twente Enschede · Eredivisie€1M
- HallerCFFC Utrecht · Eredivisie€1M
- OvereemDMSC Heerenveen · Eredivisie€1M
- NamliRWPEC Zwolle · Eredivisie€1M
- ParejoCMVillarreal CF · midfielders€1M
- DemirbayCMKasimpasa · midfielders€1M
- Oxlade-ChamberlainCMCeltic FC · midfielders€1M
- VecinoCMCelta de Vigo · midfielders€1M
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).