Joris van
Overeem
DMNetherlands · SC Heerenveen
Player dossierEredivisie
Joris vanOvereem
DMDefensive MidfieldMidfield
- Club
- SC Heerenveen
- League
- Eredivisie
- Nationality
- Netherlands
- Age
- 31
- Height
- 181 cm
- Foot
- Right
- Valued
- 28 May 2026
Reading the valuation
The market values Overeem at €1M. Model A, which never saw Overeem during training, estimates €1.7M: the market value is 42% below that estimate.
That is a factor of ×1.72. 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 €1.7M, 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
- 37
- Minutes
- 3,293
- Goals
- 2
- Assists
- 9
- Started
- 37/37
- Min / app
- 89
- Cards
- 5Y 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 Overeem…
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)
Starts
Share of appearances started rather than entered from the bench.
100% this player69% midfielder median99th 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
- €50k
- Sept 2012
- Peak
- €3.5M
- Jul 2016
- Model target
- €1M
- May 2026
- Valuations
- 32
- 5 club changes
May 2026: €1M, SC Heerenveen. Dotted lines mark the €2M, €10M and €30M tier boundaries.
Show as a table
| Date | Market value | Club |
|---|---|---|
| 2012-09-10 | €50k | AZ Alkmaar U21 |
| 2014-02-10 | €150k | AZ Alkmaar U21 |
| 2014-08-11 | €200k | FC Dordrecht |
| 2014-11-02 | €350k | FC Dordrecht |
| 2015-02-11 | €350k | FC Dordrecht |
| 2015-07-01 | €650k | AZ Alkmaar |
| 2015-11-11 | €1M | AZ Alkmaar |
| 2016-02-05 | €1.5M | AZ Alkmaar |
| 2016-04-08 | €2.5M | AZ Alkmaar |
| 2016-07-15 | €3.5M | AZ Alkmaar |
| 2017-01-18 | €3M | AZ Alkmaar |
| 2017-06-07 | €3M | AZ Alkmaar |
| 2018-01-17 | €3M | AZ Alkmaar |
| 2018-03-27 | €2M | AZ Alkmaar |
| 2018-06-12 | €1.5M | AZ Alkmaar |
| 2018-12-28 | €1.5M | FC Utrecht |
| 2019-06-12 | €1.8M | FC Utrecht |
| 2019-12-16 | €1.8M | FC Utrecht |
| 2020-04-08 | €1.4M | FC Utrecht |
| 2020-10-14 | €1.4M | FC Utrecht |
| 2021-05-19 | €1.5M | FC Utrecht |
| 2021-10-04 | €1.2M | FC Utrecht |
| 2022-01-05 | €1.2M | FC Utrecht |
| 2022-06-08 | €900k | FC Utrecht |
| 2022-12-20 | €700k | Maccabi Tel Aviv |
| 2023-05-29 | €300k | Maccabi Tel Aviv |
| 2023-12-22 | €450k | Maccabi Tel Aviv |
| 2024-06-17 | €800k | Maccabi Tel Aviv |
| 2024-12-30 | €800k | Maccabi Tel Aviv |
| 2025-06-13 | €800k | Maccabi Tel Aviv |
| 2025-12-02 | €900k | SC Heerenveen |
| 2026-05-28 | €1M | SC Heerenveen |
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
- −0.544
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 Overeem 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
- NamliRWPEC Zwolle · Eredivisie€1M
- GasselGKExcelsior Rotterdam · 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).