FairValue

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  • EnvironmentOverviewWhat FairValue measures, what it found, where to go next.
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Carlos

Protesoni

DMUruguay · Deportivo Alavés

№ 431190Emerging €1.9M −0.65

Player dossierLaLiga

CarlosProtesoni

DMDefensive MidfieldMidfield

Club
Deportivo Alavés
League
LaLiga
Nationality
Uruguay
Age
28
Height
185 cm
Foot
Right
Valued
5 Jun 2026

Reading the valuation

The market values Protesoni at €1M. Model A, which never saw Protesoni during training, estimates €1.9M: the market value is 48% below that estimate.

That is a factor of ×1.92. 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 €1.2M, 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.

▼ −0.65A €1.9M▼ −0.18B €1.2M
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
37
Minutes
1,214
Goals
1
Assists
1
Started
12/37
Min / app
33
Cards
3Y 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 Protesoni…

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 €1.9M

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 1,687 midfielders

Carlos Protesoni's percentiles among midfielders: Goals per 90 46th, Assists per 90 41st, Minutes, two years 18th, Starts 6th, Minutes, last 365 days 18th, European club minutes 30th46thGoals41stAssists18thMinutes6thStarts18thRecent30thEurope

Dashed ring: the midfielder median (50th percentile)

Goals per 90

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

0.07 this player0.08 midfielder median46th percentile

0.00peer deciles · median line · this player ●0.93

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
€300k
Sept 2016
Peak
€2M
Jul 2018
Model target
€1M
Jun 2026
Valuations
23
2 club changes
Jun 2026€1MDeportivo AlavésValuation the model is trained to reproduce

Jun 2026: €1M, Deportivo Alavés. Dotted lines mark the €2M, €10M and €30M tier boundaries.

Show as a table
DateMarket valueClub
2016-09-09€300kDefensor Sporting Club
2017-02-22€650kDefensor Sporting Club
2018-02-05€1.5MDefensor Sporting Club
2018-07-01€2MDefensor Sporting Club
2018-12-18€1.3MCA Independiente
2019-08-06€500kCA Independiente
2019-12-05€500kCA Independiente
2020-04-08€450kCA Independiente
2021-02-08€450kCA Independiente
2021-06-11€200kCA Independiente
2021-10-20€150kCA Independiente
2022-02-08€250kCA Independiente
2022-05-24€450kCA Independiente
2022-09-26€500kDeportivo Alavés
2022-12-29€500kDeportivo Alavés
2023-06-14€500kDeportivo Alavés
2023-12-22€500kDeportivo Alavés
2024-03-21€1MDeportivo Alavés
2024-06-07€1.5MDeportivo Alavés
2024-12-27€1.5MDeportivo Alavés
2025-06-09€1.2MDeportivo Alavés
2025-12-12€1MDeportivo Alavés
2026-06-05€1MDeportivo Alavés

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
−0.652

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 →

Midfielders, all leagues1,687 players · median €2M

Valued above 32% of the 1,687 midfielders.

€20k€200k€2M€20M€1MSee them in the Explorer →

Where Protesoni 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).