Tika de
Jonge
CMNetherlands · FC Groningen
Player dossierEredivisie
Tika deJonge
CMCentral MidfieldMidfield
- Club
- FC Groningen
- League
- Eredivisie
- Nationality
- Netherlands
- Age
- 23
- Height
- 183 cm
- Foot
- Right
- Valued
- 28 May 2026
Reading the valuation
The market values Jonge at €1.8M. Model A, which never saw Jonge during training, estimates €2.4M: the market value is 26% below that estimate.
That is a factor of ×1.35. 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 €2.7M, 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
- 50
- Minutes
- 3,395
- Goals
- 4
- Assists
- 2
- Started
- 41/50
- Min / app
- 68
- Cards
- 6Y 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 Jonge…
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 €1.8M
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.
82% this player69% midfielder median74th 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
- €100k
- Jun 2024
- Peak
- €1.8M
- May 2026
- Model target
- €1.8M
- May 2026
- Valuations
- 7
- 0 club changes
May 2026: €1.8M, FC Groningen. Dotted lines mark the €2M, €10M and €30M tier boundaries.
Show as a table
| Date | Market value | Club |
|---|---|---|
| 2024-06-10 | €100k | FC Groningen |
| 2024-10-14 | €500k | FC Groningen |
| 2024-12-17 | €500k | FC Groningen |
| 2025-03-28 | €750k | FC Groningen |
| 2025-05-28 | €900k | FC Groningen |
| 2025-12-02 | €1.3M | FC Groningen |
| 2026-05-28 | €1.8M | FC Groningen |
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
- −0.297
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 61% of the 425 Eredivisie players.
See them in the Explorer →Midfielders, all leagues1,687 players · median €2M
Valued above 44% of the 1,687 midfielders.
See them in the Explorer →Where Jonge appears
Watchlists and the comparison tray are kept in this browser only.
Near this valuation closest observed values: same league, then same position
- SierhuisCFFortuna Sittard · Eredivisie€1.8M
- KramerCBGo Ahead Eagles · Eredivisie€1.8M
- YegoianAMExcelsior Rotterdam · Eredivisie€1.8M
- BacunaCMFC Volendam · Eredivisie€1.7M
- StögerAMBorussia Mönchengladbach · midfielders€1.8M
- GerhardtCMVfL Wolfsburg · midfielders€1.8M
- BelkeblaCMAngers SCO · midfielders€1.8M
- PflückeRMRoyal Charleroi SC · midfielders€1.8M
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).