FairValue

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  • EnvironmentOverviewWhat FairValue measures, what it found, where to go next.
  • EnvironmentTerminalExplore, compare and track players; market, league and model views.
  • EnvironmentStoriesValuations, head-to-heads and research findings, told as stories.
  • TerminalPlayer ExplorerSearch, filter and sort the player export.
  • TerminalComparison StudioTwo to four players on one scale.
  • TerminalWatchlistsNamed collections, kept in this browser.
  • TerminalMarket LandscapeHow observed value is distributed, and where the model drifts.

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Dro

Fernández

AMSpain · Paris Saint-Germain

№ 1071596Elite €18.8M −0.63

Player dossierLigue 1

DroFernández

AMAttacking MidfieldMidfield

Club
Paris Saint-Germain
League
Ligue 1
Nationality
Spain
Age
18
Height
180 cm
Foot
Right
Valued
1 Jun 2026

Reading the valuation

The market values Fernández at €10M. Model A, which never saw Fernández during training, estimates €18.8M: the market value is 47% below that estimate.

That is a factor of ×1.88. 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 €8.2M, 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.

▼ −0.63A €18.8M▲ +0.20B €8.2M
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
18
Minutes
833
Goals
1
Assists
1
Started
9/18
Min / app
46
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 Fernández…

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 €10M

Checking API
EmergingEstablishedEliteWorld Class€2M€10M€30M€100k€1M€100MMarket €10MModel A €18.8M

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

Dro Fernández's percentiles among midfielders: Goals per 90 58th, Assists per 90 55th, Minutes, two years 10th, Starts 21st, Minutes, last 365 days 26th, European club minutes 68th58thGoals55thAssists10thMinutes21stStarts26thRecent68thEurope

Dashed ring: the midfielder median (50th percentile)

European club minutes

Share of minutes played in UEFA club competitions.

7% this player0% midfielder median68th percentile

0%peer deciles · median line · this player ●85%

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
€5M
Sept 2025
Peak
€10M
Dec 2025
Model target
€10M
Jun 2026
Valuations
3
2 club changes
Jun 2026€10MParis Saint-GermainValuation the model is trained to reproduce

Jun 2026: €10M, Paris Saint-Germain. Dotted lines mark the €2M, €10M and €30M tier boundaries.

Show as a table
DateMarket valueClub
2025-09-29€5MFC Barcelona Atlètic
2025-12-12€10MFC Barcelona
2026-06-01€10MParis Saint-Germain

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
−0.634

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 →

Ligue 1423 players · median €5M

Valued above 66% of the 423 Ligue 1 players.

€100k€750k€5M€30M€10MSee them in the Explorer →

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

Valued above 78% of the 1,687 midfielders.

€20k€200k€2M€20M€10MSee them in the Explorer →

Where Fernández 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).