FairValue

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Iván

Martín

CMSpain · Girona FC

№ 341278Established €5.7M −0.14

Player dossierLaLiga

IvánMartín

CMCentral MidfieldMidfield

Club
Girona FC
League
LaLiga
Nationality
Spain
Age
27
Height
178 cm
Foot
Left
Valued
5 Jun 2026

Reading the valuation

The market values Martín at €5M. Model A, which never saw Martín during training, estimates €5.7M: the market value is 13% below that estimate.

That is a factor of ×1.14. 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 €9.6M, 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 €5.7M▼ −0.65B €9.6M
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
77
Minutes
5,022
Goals
1
Assists
2
Started
58/77
Min / app
65
Cards
7Y 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 Martín…

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 €5M

Checking API
EmergingEstablishedEliteWorld Class€2M€10M€30M€100k€1M€100MMarket €5MModel A €5.7M

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

Iván Martín's percentiles among midfielders: Goals per 90 21st, Assists per 90 22nd, Minutes, two years 86th, Starts 61st, Minutes, last 365 days 83rd, European club minutes 68th21stGoals22ndAssists86thMinutes61stStarts83rdRecent68thEurope

Dashed ring: the midfielder median (50th percentile)

Minutes, two years

Total club minutes in the two-year window: how much the player was used.

5,022 this player2,607 midfielder median86th percentile

451peer deciles · median line · this player ●9,624

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
€200k
Oct 2018
Peak
€15M
Mar 2024
Model target
€5M
Jun 2026
Valuations
21
3 club changes
Jun 2026€5MGirona FCValuation the model is trained to reproduce

Jun 2026: €5M, Girona FC. Dotted lines mark the €2M, €10M and €30M tier boundaries.

Show as a table
DateMarket valueClub
2018-10-31€200kVillarreal CF B
2019-02-19€250kVillarreal CF B
2019-06-29€300kVillarreal CF B
2019-09-10€300kVillarreal CF B
2020-02-11€300kVillarreal CF B
2020-10-08€400kCD Mirandés
2020-11-23€600kCD Mirandés
2021-01-08€800kCD Mirandés
2021-06-24€800kCD Mirandés
2021-12-30€800kDeportivo Alavés
2022-06-29€800kGirona FC
2022-11-07€1MGirona FC
2023-06-13€3MGirona FC
2023-10-13€4MGirona FC
2023-12-22€10MGirona FC
2024-03-21€15MGirona FC
2024-06-07€15MGirona FC
2024-12-27€10MGirona FC
2025-06-09€6MGirona FC
2025-12-12€6MGirona FC
2026-06-05€5MGirona FC

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
−0.135

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 57% of the 509 LaLiga players.

€100k€1M€10M€100M€5MSee them in the Explorer →

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

Valued above 65% of the 1,687 midfielders.

€20k€200k€2M€20M€5MSee them in the Explorer →

Where Martín 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).