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.
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  • TerminalPlayer ExplorerSearch, filter and sort the player export.
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  • TerminalMarket LandscapeHow observed value is distributed, and where the model drifts.

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Antoniu

Roca

RWSpain · RCD Espanyol Barcelona

№ 834744Emerging €1.8M +0.01

Player dossierLaLiga

AntoniuRoca

RWRight WingerAttack

Club
RCD Espanyol Barcelona
League
LaLiga
Nationality
Spain
Age
23
Height
180 cm
Foot
Right
Valued
5 Jun 2026

Reading the valuation

The market values Roca at €1.8M. Model A, which never saw Roca during training, estimates €1.8M: the market value is 1% above that estimate.

That is a factor of ×1.01. 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 €1.2M, 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.

▲ +0.01A €1.8M▲ +0.38B €1.2M
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
43
Minutes
1,541
Goals
0
Assists
1
Started
19/43
Min / app
36
Cards
5Y 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 Roca…

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 €1.8M

Checking API
EmergingEstablishedEliteWorld Class€2M€10M€30M€100k€1M€100MMarket €1.8MModel A €1.8M

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 1,583 attackers

Antoniu Roca's percentiles among attackers: Goals per 90 3rd, Assists per 90 18th, Minutes, two years 33rd, Starts 26th, Minutes, last 365 days 9th, European club minutes 28th3rdGoals18thAssists33rdMinutes26thStarts9thRecent28thEurope

Dashed ring: the attacker median (50th percentile)

Minutes, two years

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

1,541 this player2,242 attacker median33rd percentile

450peer deciles · median line · this player ●8,788

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
€50k
Oct 2021
Peak
€1.8M
Jun 2025
Model target
€1.8M
Jun 2026
Valuations
13
1 club change
Jun 2026€1.8MRCD Espanyol BarcelonaValuation the model is trained to reproduce

Jun 2026: €1.8M, RCD Espanyol Barcelona. Dotted lines mark the €2M, €10M and €30M tier boundaries.

Show as a table
DateMarket valueClub
2021-10-13€50kRCD Espanyol B
2021-12-30€50kRCD Espanyol B
2022-06-29€50kRCD Espanyol B
2022-12-29€50kRCD Espanyol B
2023-06-30€50kRCD Espanyol B
2023-10-13€200kRCD Espanyol B
2023-12-20€200kRCD Espanyol B
2024-06-24€200kRCD Espanyol B
2024-12-27€400kRCD Espanyol Barcelona
2025-03-21€1.5MRCD Espanyol Barcelona
2025-06-09€1.8MRCD Espanyol Barcelona
2025-12-12€1.8MRCD Espanyol Barcelona
2026-06-05€1.8MRCD Espanyol Barcelona

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
+0.008

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 25% of the 509 LaLiga players.

€100k€1M€10M€100M€1.8MSee them in the Explorer →

Attackers, all leagues1,583 players · median €2.5M

Valued above 43% of the 1,583 attackers.

€20k€300k€5M€75M€1.8MSee them in the Explorer →

Where Roca 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).