Roshon van
Eijma
CBCuracao · RKC Waalwijk
Player dossierEredivisie
Roshon vanEijma
CBCentre-BackDefender
- Club
- RKC Waalwijk
- League
- Eredivisie
- Nationality
- Curacao
- Age
- 27
- Height
- 186 cm
- Foot
- Right
- Valued
- 16 Dec 2025
EredivisieReading the valuation
The market values Eijma at €375k. Model A, which never saw Eijma during training, estimates €437k: the market value is 14% below that estimate.
That is a factor of ×1.16. 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 €761k, 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
- 28
- Minutes
- 2,085
- Goals
- 0
- Assists
- 1
- Started
- 25/28
- Min / app
- 74
- 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 Eijma…
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 €375k
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 2,065 defenders
Dashed ring: the defender median (50th percentile)
Starts
Share of appearances started rather than entered from the bench.
89% this player83% defender median67th 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
- €200k
- Jan 2019
- Peak
- €500k
- Dec 2024
- Model target
- €375k
- Dec 2025
- Valuations
- 17
- 3 club changes
Dec 2025: €375k, RKC Waalwijk. Dotted lines mark the €2M, €10M and €30M tier boundaries.
Show as a table
| Date | Market value | Club |
|---|---|---|
| 2019-01-21 | €200k | Roda JC Kerkrade |
| 2019-07-03 | €225k | Roda JC Kerkrade |
| 2020-09-07 | €175k | Preußen Münster |
| 2021-01-05 | €100k | Preußen Münster |
| 2021-06-26 | €100k | Preußen Münster |
| 2022-01-12 | €100k | TOP Oss |
| 2022-03-24 | €125k | TOP Oss |
| 2022-06-23 | €125k | TOP Oss |
| 2022-10-12 | €225k | TOP Oss |
| 2023-04-03 | €300k | TOP Oss |
| 2023-07-04 | €300k | TOP Oss |
| 2024-01-08 | €300k | TOP Oss |
| 2024-06-10 | €350k | TOP Oss |
| 2024-10-14 | €450k | RKC Waalwijk |
| 2024-12-17 | €500k | RKC Waalwijk |
| 2025-05-28 | €450k | RKC Waalwijk |
| 2025-12-16 | €375k | RKC Waalwijk |
Audit context group-level, not about this player
- Audit group
- non-UEFA
- Population gap, Model A
- +0.093 95% CI +0.063 to +0.124
- This player, market vs held-out A
- −0.152
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 17% of the 425 Eredivisie players.
See them in the Explorer →Defenders, all leagues2,065 players · median €2M
Valued above 14% of the 2,065 defenders.
See them in the Explorer →Where Eijma appears
Watchlists and the comparison tray are kept in this browser only.
Near this valuation closest observed values: same league, then same position
- KökcüAMFC Volendam · Eredivisie€375k
- LokesaLWRKC Waalwijk · Eredivisie€375k
- CheryAMNEC Nijmegen · Eredivisie€400k
- MisidjanLMNEC Nijmegen · Eredivisie€400k
- YoungRBIpswich Town · defenders€400k
- LovrenCBPAOK Thessaloniki · defenders€400k
- VogtCBVfL Bochum · defenders€400k
- SavicCBTrabzonspor · defenders€400k
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).