FairValue

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Portrait of Óscar Mingueza

Óscar

Mingueza

RBSpain · Celta de Vigo

№ 331505Elite €10.6M +0.53

Image: FootyLogos

Player dossierLaLiga

ÓscarMingueza

RBRight-BackDefender

Club
Celta de Vigo
League
LaLiga
Nationality
Spain
Age
27
Height
184 cm
Foot
Right
Valued
5 Jun 2026

Reading the valuation

The market values Mingueza at €18M. Model A, which never saw Mingueza during training, estimates €10.6M: the market value is 70% above that estimate.

That is a factor of ×1.70. 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 €17.3M, 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.

▲ +0.53A €10.6M▲ +0.04B €17.3M
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
83
Minutes
5,843
Goals
5
Assists
12
Started
65/83
Min / app
70
Cards
14Y 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 Mingueza…

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 €18M

Checking API
EmergingEstablishedEliteWorld Class€2M€10M€30M€100k€1M€100MMarket €18MModel A €10.6M

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 2,065 defenders

Óscar Mingueza's percentiles among defenders: Goals per 90 79th, Assists per 90 94th, Minutes, two years 91st, Starts 41st, Minutes, last 365 days 88th, European club minutes 75th79thGoals94thAssists91stMinutes41stStarts88thRecent75thEurope

Dashed ring: the defender median (50th percentile)

Assists per 90

Club assists per 90 minutes in the same window.

0.18 this player0.04 defender median94th percentile

0.00peer deciles · median line · this player ●0.58

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
Sept 2018
Peak
€20M
Dec 2024
Model target
€18M
Jun 2026
Valuations
25
2 club changes
Jun 2026€18MCelta de VigoValuation the model is trained to reproduce

Jun 2026: €18M, Celta de Vigo. Dotted lines mark the €2M, €10M and €30M tier boundaries.

Show as a table
DateMarket valueClub
2018-09-03€100kFC Barcelona B
2019-02-19€100kFC Barcelona B
2019-06-29€100kFC Barcelona B
2019-09-10€100kFC Barcelona B
2020-02-11€200kFC Barcelona B
2020-10-08€200kFC Barcelona B
2020-12-08€3MFC Barcelona
2021-01-08€5MFC Barcelona
2021-03-19€10MFC Barcelona
2021-06-10€15MFC Barcelona
2021-12-30€9MFC Barcelona
2022-06-03€6MFC Barcelona
2022-09-23€5MCelta de Vigo
2022-11-07€3MCelta de Vigo
2023-06-13€2.5MCelta de Vigo
2023-10-13€3MCelta de Vigo
2023-12-22€6MCelta de Vigo
2024-03-21€8MCelta de Vigo
2024-06-07€8MCelta de Vigo
2024-10-11€12MCelta de Vigo
2024-12-27€20MCelta de Vigo
2025-06-09€20MCelta de Vigo
2025-10-02€18MCelta de Vigo
2025-12-12€18MCelta de Vigo
2026-06-05€18MCelta de Vigo

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
+0.532

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 84% of the 509 LaLiga players.

€100k€1M€10M€100M€18MSee them in the Explorer →

Defenders, all leagues2,065 players · median €2M

Valued above 89% of the 2,065 defenders.

€20k€200k€2M€20M€18MSee them in the Explorer →

Where Mingueza 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).