FairValue

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Roberto

López

AMSpain · CD Leganés

№ 569866Emerging €837k +0.18

Player dossierLaLiga

RobertoLópez

AMAttacking MidfieldMidfield

Club
CD Leganés
League
LaLiga
Nationality
Spain
Age
25
Height
179 cm
Foot
Left
Valued
30 Dec 2025

Reading the valuation

The market values López at €1M. Model A, which never saw López during training, estimates €837k: the market value is 19% above that estimate.

That is a factor of ×1.19. 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 €375k, 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.

▲ +0.18A €837k▲ +0.98B €375k
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
17
Minutes
655
Goals
0
Assists
1
Started
6/17
Min / app
39
Cards
0Y 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 López…

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 €837k

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

Roberto López's percentiles among midfielders: Goals per 90 10th, Assists per 90 67th, Minutes, two years 5th, Starts 8th, Minutes, last 365 days 4th, European club minutes 30th10thGoals67thAssists5thMinutes8thStarts4thRecent30thEurope

Dashed ring: the midfielder median (50th percentile)

Assists per 90

Club assists per 90 minutes in the same window.

0.14 this player0.09 midfielder median67th percentile

0.00peer deciles · median line · this player ●0.74

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
€250k
Nov 2018
Peak
€8M
Jan 2021
Model target
€1M
Dec 2025
Valuations
21
5 club changes
Dec 2025€1MCD LeganésValuation the model is trained to reproduce

Dec 2025: €1M, CD Leganés. Dotted lines mark the €2M, €10M and €30M tier boundaries.

Show as a table
DateMarket valueClub
2018-11-23€250kReal Sociedad B
2019-02-19€1MReal Sociedad B
2019-06-29€1MReal Sociedad B
2019-09-10€1MReal Sociedad B
2020-02-11€1MReal Sociedad B
2020-04-08€900kReal Sociedad B
2020-10-08€7.5MReal Sociedad
2021-01-05€8MReal Sociedad
2021-06-10€8MReal Sociedad
2021-10-13€4MReal Sociedad B
2021-12-27€4MReal Sociedad B
2022-06-29€2MReal Sociedad B
2022-12-29€2MCD Mirandés
2023-03-24€2.5MCD Mirandés
2023-06-14€3MCD Mirandés
2023-12-20€3MCD Tenerife
2024-06-24€2.5MCD Tenerife
2024-12-27€2.2MCD Leganés
2025-03-21€1.5MCD Leganés
2025-06-09€1MCD Leganés
2025-12-30€1MCD Leganés

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
+0.177

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 López 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).