Warleson
Player dossierPro League
Warleson
GKGoalkeeperGoalkeeper
- Club
- Cercle Brugge
- League
- Pro League
- Nationality
- Brazil
- Age
- 29
- Height
- 190 cm
- Foot
- Right
- Valued
- 4 Jun 2026
Reading the valuation
The market values Warleson at €2M. Model A, which never saw Warleson during training, estimates €677k: the market value is 196% above that estimate.
That is a factor of ×2.96. 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 €1M, 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
- 34
- Minutes
- 2,823
- Started
- 32/34
- Min / app
- 83
- 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 Warleson…
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 €2M
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 485 goalkeepers
Dashed ring: the goalkeeper median (50th percentile)
European club minutes
Share of minutes played in UEFA club competitions.
16% this player0% goalkeeper median80th 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
- Dec 2017
- Peak
- €4.5M
- Jun 2024
- Model target
- €2M
- Jun 2026
- Valuations
- 19
- 1 club change
Jun 2026: €2M, Cercle Brugge. Dotted lines mark the €2M, €10M and €30M tier boundaries.
Show as a table
| Date | Market value | Club |
|---|---|---|
| 2017-12-07 | €50k | Unknown |
| 2020-03-30 | €100k | Cercle Brugge |
| 2020-08-06 | €200k | Cercle Brugge |
| 2020-10-16 | €300k | Cercle Brugge |
| 2021-06-07 | €250k | Cercle Brugge |
| 2022-01-06 | €250k | Cercle Brugge |
| 2022-04-12 | €250k | Cercle Brugge |
| 2022-11-04 | €250k | Cercle Brugge |
| 2023-03-22 | €500k | Cercle Brugge |
| 2023-06-09 | €400k | Cercle Brugge |
| 2023-12-19 | €2M | Cercle Brugge |
| 2024-03-22 | €3M | Cercle Brugge |
| 2024-06-04 | €4.5M | Cercle Brugge |
| 2024-12-11 | €4M | Cercle Brugge |
| 2025-03-26 | €3M | Cercle Brugge |
| 2025-06-12 | €2.5M | Cercle Brugge |
| 2025-10-01 | €1.7M | Cercle Brugge |
| 2025-12-10 | €1M | Cercle Brugge |
| 2026-06-04 | €2M | Cercle Brugge |
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
- +1.084
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 →Pro League350 players · median €1.8M
Valued above 50% of the 350 Pro League players.
See them in the Explorer →Goalkeepers, all leagues485 players · median €1M
Valued above 59% of the 485 goalkeepers.
See them in the Explorer →Where Warleson appears
Watchlists and the comparison tray are kept in this browser only.
Near this valuation closest observed values: same league, then same position
- HazardAMRSC Anderlecht · Pro League€2M
- KayembeLBKRC Genk · Pro League€2M
- SchoofsCMUnion Saint-Gilloise · Pro League€2M
- AyensaCFStandard Liège · Pro League€2M
- SommerGKInter Milan · goalkeepers€2M
- SkorupskiGKBologna FC 1909 · goalkeepers€2M
- RönnowGK1.FC Union Berlin · goalkeepers€2M
- JohnstoneGKWolverhampton Wanderers · goalkeepers€2M
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).

