FairValue

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  • EnvironmentOverviewWhat FairValue measures, what it found, where to go next.
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Portrait of Santiago Mouriño

Santiago

Mouriño

RBUruguay · Villarreal CF

№ 953901Elite €17.4M +0.14

Image: FootyLogos

Player dossierLaLiga

SantiagoMouriño

RBRight-BackDefender

Club
Villarreal CF
League
LaLiga
Nationality
Uruguay
Age
24
Height
186 cm
Foot
Right
Valued
5 Jun 2026

Reading the valuation

The market values Mouriño at €20M. Model A, which never saw Mouriño during training, estimates €17.4M: the market value is 15% above that estimate.

That is a factor of ×1.15. 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 €6.3M, 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.

▲ +0.14A €17.4M▲ +1.15B €6.3M
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
61
Minutes
4,975
Goals
1
Assists
3
Started
55/61
Min / app
82
Cards
20Y 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 Mouriño…

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 €20M

Checking API
EmergingEstablishedEliteWorld Class€2M€10M€30M€100k€1M€100MMarket €20MModel A €17.4M

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

Santiago Mouriño's percentiles among defenders: Goals per 90 39th, Assists per 90 59th, Minutes, two years 83rd, Starts 70th, Minutes, last 365 days 87th, European club minutes 73rd39thGoals59thAssists83rdMinutes70thStarts87thRecent73rdEurope

Dashed ring: the defender median (50th percentile)

Minutes, last 365 days

Club minutes in the final year of the window: recent involvement, or the absence of it.

2,917 this player1,687 defender median87th percentile

0peer deciles · median line · this player ●4,941

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
€25k
Jan 2022
Peak
€20M
Jun 2026
Model target
€20M
Jun 2026
Valuations
14
4 club changes
Jun 2026€20MVillarreal CFValuation the model is trained to reproduce

Jun 2026: €20M, Villarreal CF. Dotted lines mark the €2M, €10M and €30M tier boundaries.

Show as a table
DateMarket valueClub
2022-01-01€25kUnknown
2022-06-10€50kRacing Club de Montevideo
2022-11-12€150kRacing Club de Montevideo
2023-04-03€500kRacing Club de Montevideo
2023-10-13€600kReal Zaragoza
2023-12-20€600kReal Zaragoza
2024-03-26€1MReal Zaragoza
2024-06-24€1.2MReal Zaragoza
2024-10-11€2MDeportivo Alavés
2024-12-27€2MDeportivo Alavés
2025-06-09€3MDeportivo Alavés
2025-10-02€10MVillarreal CF
2025-12-12€10MVillarreal CF
2026-06-05€20MVillarreal CF

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
+0.140

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 86% of the 509 LaLiga players.

€100k€1M€10M€100M€20MSee them in the Explorer →

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

Valued above 91% of the 2,065 defenders.

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

Where Mouriño 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).