Gyan de
Regt
LWNetherlands · Excelsior Rotterdam
Player dossierEredivisie
Gyan deRegt
LWLeft WingerAttack
- Club
- Excelsior Rotterdam
- League
- Eredivisie
- Nationality
- Netherlands
- Age
- 22
- Height
- 176 cm
- Foot
- –
- Valued
- 28 May 2026
Reading the valuation
The market values Regt at €900k. Model A, which never saw Regt during training, estimates €2M: the market value is 55% below that estimate.
That is a factor of ×2.23. 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 €4.5M, 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.
- Apps
- 35
- Minutes
- 2,691
- Goals
- 3
- Assists
- 8
- Started
- 31/35
- Min / app
- 77
- Cards
- 3Y 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 Regt…
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 €900k
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 1,583 attackers
Dashed ring: the attacker median (50th percentile)
Starts
Share of appearances started rather than entered from the bench.
89% this player59% attacker median93rd 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
- Mar 2022
- Peak
- €900k
- May 2026
- Model target
- €900k
- May 2026
- Valuations
- 12
- 1 club change
May 2026: €900k, Excelsior Rotterdam. Dotted lines mark the €2M, €10M and €30M tier boundaries.
Show as a table
| Date | Market value | Club |
|---|---|---|
| 2022-03-17 | €100k | Vitesse Arnhem |
| 2022-06-08 | €100k | Vitesse Arnhem |
| 2022-11-11 | €100k | Vitesse Arnhem |
| 2023-06-23 | €100k | Vitesse Arnhem |
| 2023-10-17 | €300k | Vitesse Arnhem |
| 2023-12-15 | €400k | Vitesse Arnhem |
| 2024-05-31 | €400k | Vitesse Arnhem |
| 2024-12-10 | €350k | Vitesse Arnhem |
| 2025-06-09 | €350k | Vitesse Arnhem |
| 2025-10-02 | €550k | Excelsior Rotterdam |
| 2025-12-02 | €650k | Excelsior Rotterdam |
| 2026-05-28 | €900k | Excelsior Rotterdam |
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
- −0.803
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 44% of the 425 Eredivisie players.
See them in the Explorer →Attackers, all leagues1,583 players · median €2.5M
Valued above 28% of the 1,583 attackers.
See them in the Explorer →Where Regt appears
Watchlists and the comparison tray are kept in this browser only.
Near this valuation closest observed values: same league, then same position
- CrooijAMSparta Rotterdam · Eredivisie€900k
- AdewoyeCBFortuna Sittard · Eredivisie€900k
- GreimlCBNAC Breda · Eredivisie€900k
- OostingAMPEC Zwolle · Eredivisie€900k
- GiroudCFLOSC Lille · attackers€900k
- KvilitaiaCFFC Metz · attackers€900k
- BaldéLWAC Monza · attackers€900k
- KramerCFKonyaspor · attackers€900k
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).