FairValue

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Portrait of Igor Thiago

Igor

Thiago

CFBrazil · Brentford FC

№ 739443World Class €45.4M +0.36

Image: FootyLogos

Player dossierPremier League

IgorThiago

CFCentre-ForwardAttack

Club
Brentford FC
League
Premier League
Nationality
Brazil
Age
24
Height
190 cm
Foot
Right
Valued
3 Jun 2026

Reading the valuation

The market values Thiago at €65M. Model A, which never saw Thiago during training, estimates €45.4M: the market value is 43% above that estimate.

That is a factor of ×1.43. 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 €19.1M, 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.

▲ +0.36A €45.4M▲ +1.22B €19.1M
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
48
Minutes
3,606
Goals
25
Assists
1
Started
39/48
Min / app
75
Cards
8Y 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 Thiago…

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 €65M

Checking API
EmergingEstablishedEliteWorld Class€2M€10M€30M€100k€1M€100MMarket €65MModel A €45.4M

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

Igor Thiago's percentiles among attackers: Goals per 90 96th, Assists per 90 11th, Minutes, two years 75th, Starts 85th, Minutes, last 365 days 98th, European club minutes 28th96thGoals11thAssists75thMinutes85thStarts98thRecent28thEurope

Dashed ring: the attacker median (50th percentile)

Minutes, last 365 days

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

3,437 this player1,301 attacker median98th percentile

0peer deciles · median line · this player ●4,703

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
€150k
Aug 2021
Peak
€65M
Jun 2026
Model target
€65M
Jun 2026
Valuations
18
3 club changes
Jun 2026€65MBrentford FCValuation the model is trained to reproduce

Jun 2026: €65M, Brentford FC. Dotted lines mark the €2M, €10M and €30M tier boundaries.

Show as a table
DateMarket valueClub
2021-08-12€150kCruzeiro Esporte Clube
2021-12-03€400kCruzeiro Esporte Clube
2022-05-31€450kLudogorets Razgrad
2022-09-07€500kLudogorets Razgrad
2022-11-28€700kLudogorets Razgrad
2023-03-03€1MLudogorets Razgrad
2023-06-05€4MLudogorets Razgrad
2023-10-23€6MClub Brugge KV
2023-12-19€6MClub Brugge KV
2024-03-22€25MClub Brugge KV
2024-06-04€25MClub Brugge KV
2024-12-16€25MBrentford FC
2025-03-18€22MBrentford FC
2025-05-30€18MBrentford FC
2025-10-17€22MBrentford FC
2025-12-09€35MBrentford FC
2026-03-09€50MBrentford FC
2026-06-03€65MBrentford FC

Audit context group-level, not about this player

Audit group
non-UEFA
Population gap, Model A
+0.093 95% CI +0.063 to +0.124
This player, market vs held-out A
+0.359

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 →

Premier League555 players · median €18M

Valued above 93% of the 555 Premier League players.

€150k€1M€7.5M€50M€65MSee them in the Explorer →

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

Valued above 98% of the 1,583 attackers.

€20k€300k€5M€75M€65MSee them in the Explorer →

Where Thiago 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).