Álvaro
Valles
GKSpain · Real Betis Balompié
Image: FootyLogos
Player dossierLaLiga
ÁlvaroValles
GKGoalkeeperGoalkeeper
- Club
- Real Betis Balompié
- League
- LaLiga
- Nationality
- Spain
- Age
- 28
- Height
- 191 cm
- Foot
- Right
- Valued
- 5 Jun 2026
Reading the valuation
The market values Valles at €7M. Model A, which never saw Valles during training, estimates €8.5M: the market value is 18% below that estimate.
That is a factor of ×1.22. 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 €4.9M, 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
- 33
- Minutes
- 2,970
- Started
- 33/33
- Min / app
- 90
- Cards
- 1Y 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 Valles…
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 €7M
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.
15% this player0% goalkeeper median79th 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
- Aug 2017
- Peak
- €15M
- Mar 2024
- Model target
- €7M
- Jun 2026
- Valuations
- 26
- 4 club changes
Jun 2026: €7M, Real Betis Balompié. Dotted lines mark the €2M, €10M and €30M tier boundaries.
Show as a table
| Date | Market value | Club |
|---|---|---|
| 2017-08-17 | €50k | Betis Deportivo Balompié |
| 2018-11-23 | €50k | Las Palmas Atlético |
| 2019-02-19 | €50k | Las Palmas Atlético |
| 2019-06-29 | €100k | Las Palmas Atlético |
| 2019-09-10 | €100k | UD Las Palmas |
| 2020-02-11 | €500k | UD Las Palmas |
| 2020-04-08 | €400k | UD Las Palmas |
| 2020-10-08 | €500k | UD Las Palmas |
| 2021-01-08 | €400k | UD Las Palmas |
| 2021-06-24 | €400k | UD Las Palmas |
| 2021-12-27 | €400k | UD Las Palmas |
| 2022-06-29 | €400k | UD Las Palmas |
| 2022-09-26 | €600k | UD Las Palmas |
| 2022-12-29 | €600k | UD Las Palmas |
| 2023-03-24 | €800k | UD Las Palmas |
| 2023-06-14 | €1M | UD Las Palmas |
| 2023-10-13 | €4M | UD Las Palmas |
| 2023-12-22 | €8M | UD Las Palmas |
| 2024-03-21 | €15M | UD Las Palmas |
| 2024-06-07 | €12M | UD Las Palmas |
| 2024-10-11 | €7.5M | UD Las Palmas |
| 2024-12-27 | €3M | UD Las Palmas |
| 2025-04-04 | €2.5M | Without Club |
| 2025-12-12 | €2.5M | Real Betis Balompié |
| 2026-03-16 | €6M | Real Betis Balompié |
| 2026-06-05 | €7M | Real Betis Balompié |
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
- −0.195
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 →Goalkeepers, all leagues485 players · median €1M
Valued above 84% of the 485 goalkeepers.
See them in the Explorer →Where Valles 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
- LewandowskiCFFC Barcelona · LaLiga€7M
- CeballosCMReal Madrid · LaLiga€7M
- NgongeRWRCD Espanyol Barcelona · LaLiga€7M
- SolerCMReal Sociedad · LaLiga€7M
- SambaGKStade Rennais FC · goalkeepers€7M
- SilvaGKSporting CP · goalkeepers€7M
- DioufGKOGC Nice · goalkeepers€7M
- RamajGK1.FC Heidenheim 1846 · goalkeepers€7M
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).