FairValue

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

Gorrotxategi

DMSpain · Real Sociedad

№ 711374Elite €6.5M +1.35

Player dossierLaLiga

JonGorrotxategi

DMDefensive MidfieldMidfield

Club
Real Sociedad
League
LaLiga
Nationality
Spain
Age
24
Height
177 cm
Foot
Right
Valued
5 Jun 2026

Reading the valuation

The market values Gorrotxategi at €25M. Model A, which never saw Gorrotxategi during training, estimates €6.5M: the market value is 287% above that estimate.

That is a factor of ×3.87. 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 €4M, 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.

▲ +1.35A €6.5M▲ +1.83B €4M
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
2,636
Goals
1
Assists
3
Started
30/37
Min / app
71
Cards
8Y 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 Gorrotxategi…

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 €25M

Checking API
EmergingEstablishedEliteWorld Class€2M€10M€30M€100k€1M€100MMarket €25MModel A €6.5M

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

Jon Gorrotxategi's percentiles among midfielders: Goals per 90 26th, Assists per 90 53rd, Minutes, two years 51st, Starts 72nd, Minutes, last 365 days 83rd, European club minutes 30th26thGoals53rdAssists51stMinutes72ndStarts83rdRecent30thEurope

Dashed ring: the midfielder median (50th percentile)

Minutes, last 365 days

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

2,636 this player1,541 midfielder median83rd percentile

0peer deciles · median line · this player ●4,800

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
€50k
Aug 2021
Peak
€25M
Mar 2026
Model target
€25M
Jun 2026
Valuations
16
3 club changes
Jun 2026€25MReal SociedadValuation the model is trained to reproduce

Jun 2026: €25M, Real Sociedad. Dotted lines mark the €2M, €10M and €30M tier boundaries.

Show as a table
DateMarket valueClub
2021-08-10€50kReal Sociedad C
2021-12-30€50kReal Sociedad C
2022-03-21€100kReal Sociedad C
2022-06-29€150kReal Sociedad C
2022-12-29€200kReal Sociedad B
2023-06-30€250kReal Sociedad B
2023-12-20€400kReal Sociedad B
2024-06-24€500kReal Sociedad B
2024-10-14€600kCD Mirandés
2024-12-13€800kCD Mirandés
2025-03-27€1.5MCD Mirandés
2025-06-24€3MCD Mirandés
2025-10-02€6MReal Sociedad
2025-12-12€15MReal Sociedad
2026-03-16€25MReal Sociedad
2026-06-05€25MReal Sociedad

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
+1.352

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 89% of the 509 LaLiga players.

€100k€1M€10M€100M€25MSee them in the Explorer →

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

Valued above 91% of the 1,687 midfielders.

€20k€200k€2M€20M€25MSee them in the Explorer →

Where Gorrotxategi 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).