Aitor
Fernández
GKSpain · CA Osasuna
Player dossierLaLiga
AitorFernández
GKGoalkeeperGoalkeeper
- Club
- CA Osasuna
- League
- LaLiga
- Nationality
- Spain
- Age
- 35
- Height
- 182 cm
- Foot
- Right
- Valued
- 5 Jun 2026
Reading the valuation
The market values Fernández at €500k. Model A, which never saw Fernández during training, estimates €444k: the market value is 13% above that estimate.
That is a factor of ×1.13. 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 €265k, 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
- 11
- Minutes
- 922
- Started
- 9/11
- Min / app
- 84
- Cards
- 0Y 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 Fernández…
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 €500k
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.
0% this player0% goalkeeper median32nd 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
- Jul 2009
- Peak
- €10M
- Mar 2020
- Model target
- €500k
- Jun 2026
- Valuations
- 34
- 5 club changes
Jun 2026: €500k, CA Osasuna. Dotted lines mark the €2M, €10M and €30M tier boundaries.
Show as a table
| Date | Market value | Club |
|---|---|---|
| 2009-07-22 | €100k | CD Basconia |
| 2010-08-15 | €300k | Bilbao Athletic |
| 2013-02-06 | €300k | Villarreal CF B |
| 2013-05-10 | €400k | Villarreal CF B |
| 2014-07-20 | €400k | Villarreal CF B |
| 2015-01-23 | €500k | Villarreal CF B |
| 2015-09-20 | €300k | Villarreal CF B |
| 2016-07-15 | €400k | CD Numancia |
| 2017-01-24 | €400k | CD Numancia |
| 2017-06-29 | €600k | CD Numancia |
| 2018-01-01 | €800k | CD Numancia |
| 2018-05-30 | €800k | CD Numancia |
| 2018-12-21 | €800k | Levante UD |
| 2019-06-11 | €2.5M | Levante UD |
| 2019-12-20 | €7.5M | Levante UD |
| 2020-03-05 | €10M | Levante UD |
| 2020-04-08 | €8M | Levante UD |
| 2020-07-23 | €10M | Levante UD |
| 2020-10-08 | €10M | Levante UD |
| 2021-01-05 | €8M | Levante UD |
| 2021-06-10 | €6M | Levante UD |
| 2021-12-30 | €4M | Levante UD |
| 2022-03-21 | €3M | Levante UD |
| 2022-06-03 | €2.5M | Levante UD |
| 2022-11-07 | €2.5M | CA Osasuna |
| 2023-03-23 | €3M | CA Osasuna |
| 2023-06-13 | €3M | CA Osasuna |
| 2023-12-22 | €2.5M | CA Osasuna |
| 2024-03-21 | €2M | CA Osasuna |
| 2024-06-07 | €1.8M | CA Osasuna |
| 2024-12-27 | €1.5M | CA Osasuna |
| 2025-06-09 | €700k | CA Osasuna |
| 2025-12-12 | €600k | CA Osasuna |
| 2026-06-05 | €500k | CA Osasuna |
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
- +0.120
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 27% of the 485 goalkeepers.
See them in the Explorer →Where Fernández 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
- KodroCFReal Zaragoza · LaLiga€500k
- ElgezabalCBLevante UD · LaLiga€500k
- LópezCBGirona FC · LaLiga€600k
- PeñaRBCD Leganés · LaLiga€600k
- GünokGKFenerbahce · goalkeepers€500k
- SteeleGKBrighton & Hove Albion · goalkeepers€500k
- DúbravkaGKBurnley FC · goalkeepers€500k
- SilvestriGKUS Cremonese · goalkeepers€500k
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).