FairValue

Checking model

Esc

  • 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.

↑ ↓ to move · Enter to open · Esc to closeLoading player index…

Portrait of Marco Palestra

Marco

Palestra

RBItaly · Cagliari Calcio

№ 895937World Class €9.5M +1.30

Image: FootyLogos

Player dossierSerie A

MarcoPalestra

RBRight-BackDefender

Club
Cagliari Calcio
League
Serie A
Nationality
Italy
Age
21
Height
186 cm
Foot
Both
Valued
29 May 2026

Reading the valuation

The market values Palestra at €35M. Model A, which never saw Palestra during training, estimates €9.5M: the market value is 267% above that estimate.

That is a factor of ×3.67. 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 €10.7M, 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.

▲ +1.30A €9.5M▲ +1.19B €10.7M
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
52
Minutes
3,479
Goals
1
Assists
4
Started
38/52
Min / app
67
Cards
3Y 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 Palestra…

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 €35M

Checking API
EmergingEstablishedEliteWorld Class€2M€10M€30M€100k€1M€100MMarket €35MModel A €9.5M

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 2,065 defenders

Marco Palestra's percentiles among defenders: Goals per 90 45th, Assists per 90 78th, Minutes, two years 62nd, Starts 31st, Minutes, last 365 days 90th, European club minutes 62nd45thGoals78thAssists62ndMinutes31stStarts90thRecent62ndEurope

Dashed ring: the defender median (50th percentile)

Minutes, last 365 days

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

3,085 this player1,687 defender median90th percentile

0peer deciles · median line · this player ●4,941

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
Jul 2023
Peak
€35M
May 2026
Model target
€35M
May 2026
Valuations
10
2 club changes
May 2026€35MCagliari CalcioValuation the model is trained to reproduce

May 2026: €35M, Cagliari Calcio. Dotted lines mark the €2M, €10M and €30M tier boundaries.

Show as a table
DateMarket valueClub
2023-07-01€200kAtalanta U23
2023-12-21€500kAtalanta U23
2024-06-17€1MAtalanta U23
2024-10-18€3MAtalanta BC
2024-12-18€3MAtalanta BC
2025-06-17€3.5MAtalanta BC
2025-10-07€8.5MCagliari Calcio
2025-12-23€25MCagliari Calcio
2026-03-24€30MCagliari Calcio
2026-05-29€35MCagliari Calcio

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
+1.301

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 94% of the 507 Serie A players.

€100k€750k€5M€30M€35MSee them in the Explorer →

Defenders, all leagues2,065 players · median €2M

Valued above 96% of the 2,065 defenders.

€20k€200k€2M€20M€35MSee them in the Explorer →

Where Palestra 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).