FairValue

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  • EnvironmentOverviewWhat FairValue measures, what it found, where to go next.
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Portrait of Daniel Maldini

Daniel

Maldini

AMItaly · SS Lazio

№ 539134Established €7.8M +0.14

Close-up

Image: FootyLogos

Player dossierSerie A

DanielMaldini

AMAttacking MidfieldMidfield

Club
SS Lazio
League
Serie A
Nationality
Italy
Age
24
Height
188 cm
Foot
Right
Valued
29 May 2026

Reading the valuation

The market values Maldini at €9M. Model A, which never saw Maldini during training, estimates €7.8M: the market value is 15% above that estimate.

That is a factor of ×1.15. 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 €4.8M, 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 €7.8M▲ +0.62B €4.8M
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
57
Minutes
2,868
Goals
8
Assists
4
Started
34/57
Min / app
50
Cards
6Y 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 Maldini…

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 €9M

Checking API
EmergingEstablishedEliteWorld Class€2M€10M€30M€100k€1M€100MMarket €9MModel A €7.8M

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

Daniel Maldini's percentiles among midfielders: Goals per 90 89th, Assists per 90 62nd, Minutes, two years 55th, Starts 34th, Minutes, last 365 days 39th, European club minutes 61st89thGoals62ndAssists55thMinutes34thStarts39thRecent61stEurope

Dashed ring: the midfielder median (50th percentile)

Goals per 90

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

0.25 this player0.08 midfielder median89th 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
Jun 2020
Peak
€10M
Mar 2025
Model target
€9M
May 2026
Valuations
18
6 club changes
May 2026€9MSS LazioValuation the model is trained to reproduce

May 2026: €9M, SS Lazio. Dotted lines mark the €2M, €10M and €30M tier boundaries.

Show as a table
DateMarket valueClub
2020-06-25€300kMilan Primavera
2020-10-29€800kAC Milan
2020-12-29€800kAC Milan
2021-06-03€800kAC Milan
2021-10-14€2MAC Milan
2021-12-28€2MAC Milan
2022-06-07€2MAC Milan
2022-11-11€2MSpezia Calcio
2023-06-15€3MSpezia Calcio
2023-12-20€3MFC Empoli
2024-06-05€4.5MAC Monza
2024-10-18€6MAC Monza
2024-12-18€6MAC Monza
2025-03-25€10MAtalanta BC
2025-06-17€10MAtalanta BC
2025-12-23€8MAtalanta BC
2026-03-24€10MSS Lazio
2026-05-29€9MSS Lazio

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
+0.140

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 →

Serie A507 players · median €5.5M

Valued above 64% of the 507 Serie A players.

€100k€750k€5M€30M€9MSee them in the Explorer →

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

Valued above 77% of the 1,687 midfielders.

€20k€200k€2M€20M€9MSee them in the Explorer →

Where Maldini 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).