FairValue

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  • EnvironmentOverviewWhat FairValue measures, what it found, where to go next.
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Portrait of Afonso Moreira

Afonso

Moreira

LWPortugal · Olympique Lyon

№ 952282Elite €26.3M −0.27

Image: FootyLogos

Player dossierLigue 1

AfonsoMoreira

LWLeft WingerAttack

Club
Olympique Lyon
League
Ligue 1
Nationality
Portugal
Age
21
Height
176 cm
Foot
Right
Valued
1 Jun 2026

Reading the valuation

The market values Moreira at €20M. Model A, which never saw Moreira during training, estimates €26.3M: the market value is 24% below that estimate.

That is a factor of ×1.31. 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 €21.2M, 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.

▼ −0.27A €26.3M▼ −0.06B €21.2M
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
36
Minutes
2,111
Goals
6
Assists
10
Started
21/36
Min / app
59
Cards
4Y 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 Moreira…

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 €20M

Checking API
EmergingEstablishedEliteWorld Class€2M€10M€30M€100k€1M€100MMarket €20MModel A €26.3M

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

Afonso Moreira's percentiles among attackers: Goals per 90 49th, Assists per 90 98th, Minutes, two years 47th, Starts 49th, Minutes, last 365 days 76th, European club minutes 81st49thGoals98thAssists47thMinutes49thStarts76thRecent81stEurope

Dashed ring: the attacker median (50th percentile)

Assists per 90

Club assists per 90 minutes in the same window.

0.43 this player0.15 attacker median98th percentile

0.00peer deciles · median line · this player ●0.73

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
€400k
Mar 2024
Peak
€20M
Jun 2026
Model target
€20M
Jun 2026
Valuations
6
2 club changes
Jun 2026€20MOlympique LyonValuation the model is trained to reproduce

Jun 2026: €20M, Olympique Lyon. Dotted lines mark the €2M, €10M and €30M tier boundaries.

Show as a table
DateMarket valueClub
2024-03-08€400kGil Vicente FC
2024-06-06€400kGil Vicente FC
2025-05-30€400kSporting CP B
2025-12-15€5MOlympique Lyon
2026-03-27€10MOlympique Lyon
2026-06-01€20MOlympique Lyon

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
−0.273

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 85% of the 423 Ligue 1 players.

€100k€750k€5M€30M€20MSee them in the Explorer →

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

Valued above 87% of the 1,583 attackers.

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

Where Moreira 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).