FairValue

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Valery

Fernández

RWSpain · Real Zaragoza

№ 331496Emerging €947k +0.05

Player dossierLaLiga

ValeryFernández

RWRight WingerAttack

Club
Real Zaragoza
League
LaLiga
Nationality
Spain
Age
26
Height
182 cm
Foot
Right
Valued
30 Dec 2025

Reading the valuation

The market values Fernández at €1M. Model A, which never saw Fernández during training, estimates €947k: the market value is 6% above that estimate.

That is a factor of ×1.06. 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 €861k, 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.

▲ +0.05A €947k▲ +0.15B €861k
Pitch length is a log value scale fitted to this player's figures. ● observed · ◇ Model A · dashed ◇ Model B · each arc is a residual, log(observed) − log(estimate).
Apps
35
Minutes
763
Goals
3
Assists
0
Started
5/35
Min / app
22
Cards
2Y 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 €1M

Checking API
EmergingEstablishedEliteWorld Class€2M€10M€30M€100k€1M€100MMarket €1MModel A €947k

Asking 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

Valery Fernández's percentiles among attackers: Goals per 90 68th, Assists per 90 6th, Minutes, two years 11th, Starts 2nd, Minutes, last 365 days 4th, European club minutes 28th68thGoals6thAssists11thMinutes2ndStarts4thRecent28thEurope

Dashed ring: the attacker median (50th percentile)

Goals per 90

Club goals per 90 minutes played in the two years to the valuation date.

0.35 this player0.26 attacker median68th percentile

0.00peer deciles · median line · this player ●1.17

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
Oct 2018
Peak
€5M
Jun 2019
Model target
€1M
Dec 2025
Valuations
21
3 club changes
Dec 2025€1MReal ZaragozaValuation the model is trained to reproduce

Dec 2025: €1M, Real Zaragoza. Dotted lines mark the €2M, €10M and €30M tier boundaries.

Show as a table
DateMarket valueClub
2018-10-31€100kCF Peralada
2019-02-28€300kGirona FC
2019-06-11€5MGirona FC
2019-09-10€3MGirona FC
2019-12-20€2MGirona FC
2020-04-08€1.8MGirona FC
2020-07-23€1.2MGirona FC
2020-10-08€1.2MGirona FC
2021-01-08€1MGirona FC
2021-06-24€800kGirona FC
2021-12-27€800kGirona FC
2022-06-29€800kGirona FC
2022-11-07€1.5MGirona FC
2023-06-13€1.5MGirona FC
2023-10-13€2.5MGirona FC
2023-12-22€2.5MGirona FC
2024-06-07€2.5MGirona FC
2024-12-27€2.5MRCD Mallorca
2025-06-09€2MRCD Mallorca
2025-10-16€1MReal Zaragoza
2025-12-30€1MReal Zaragoza

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
+0.054

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 →

LaLiga509 players · median €4M

Valued above 8% of the 509 LaLiga players.

€100k€1M€10M€100M€1MSee them in the Explorer →

Attackers, all leagues1,583 players · median €2.5M

Valued above 29% of the 1,583 attackers.

€20k€300k€5M€75M€1MSee them in the Explorer →

Where Fernández appears

Watchlists and the comparison tray are kept in this browser only.

Near this valuation closest observed values: same league, then same position

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).