Dion
Lopy
DMSenegal · UD Almería
Player dossierLaLiga
DionLopy
DMDefensive MidfieldMidfield
- Club
- UD Almería
- League
- LaLiga
- Nationality
- Senegal
- Age
- 23
- Height
- 184 cm
- Foot
- Right
- Valued
- 30 Dec 2025
LaLigaReading the valuation
The market values Lopy at €4M. Model A, which never saw Lopy during training, estimates €1.7M: the market value is 140% above that estimate.
That is a factor of ×2.40. 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 €543k, 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
- 15
- Minutes
- 849
- Goals
- 0
- Assists
- 0
- Started
- 10/15
- Min / app
- 57
- Cards
- 4Y 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 Lopy…
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 €4M
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.
67% this player69% midfielder median45th 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
- €150k
- May 2019
- Peak
- €10M
- Jun 2024
- Model target
- €4M
- Dec 2025
- Valuations
- 16
- 3 club changes
Dec 2025: €4M, UD Almería. Dotted lines mark the €2M, €10M and €30M tier boundaries.
Show as a table
| Date | Market value | Club |
|---|---|---|
| 2019-05-23 | €150k | Unknown |
| 2021-06-04 | €800k | Stade Reims B |
| 2021-10-08 | €1M | Stade Reims |
| 2021-12-16 | €1.5M | Stade Reims |
| 2022-03-23 | €2M | Stade Reims |
| 2022-05-30 | €2.5M | Stade Reims |
| 2022-11-02 | €3M | Stade Reims |
| 2023-06-27 | €4M | Stade Reims |
| 2023-10-13 | €6M | UD Almería |
| 2023-12-22 | €6M | UD Almería |
| 2024-06-07 | €10M | UD Almería |
| 2024-10-14 | €6M | UD Almería |
| 2024-12-13 | €6M | UD Almería |
| 2025-06-24 | €6M | UD Almería |
| 2025-10-10 | €4M | UD Almería |
| 2025-12-30 | €4M | UD Almería |
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
- +0.875
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 →Midfielders, all leagues1,687 players · median €2M
Valued above 61% of the 1,687 midfielders.
See them in the Explorer →Where Lopy appears
- TerminalLaLiga in the Player Explorer
- TerminalLaLiga on the League Landscape
Watchlists and the comparison tray are kept in this browser only.
Near this valuation closest observed values: same league, then same position
- CarvajalRBReal Madrid · LaLiga€4M
- LengletCBAtlético de Madrid · LaLiga€4M
- MaupayCFSevilla FC · LaLiga€4M
- GayàLBValencia CF · LaLiga€4M
- BarkleyCMAston Villa · midfielders€4M
- EndoDMLiverpool FC · midfielders€4M
- ThomassonCMRC Lens · midfielders€4M
- KarlströmDMUdinese Calcio · midfielders€4M
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).