FairValue

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  • EnvironmentOverviewWhat FairValue measures, what it found, where to go next.
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Tiago

Tomás

RWPortugal · VfB Stuttgart

№ 616344Elite €16.4M −0.09

Player dossierBundesliga

TiagoTomás

RWRight WingerAttack

Club
VfB Stuttgart
League
Bundesliga
Nationality
Portugal
Age
23
Height
180 cm
Foot
Right
Valued
27 May 2026

Reading the valuation

The market values Tomás at €15M. Model A, which never saw Tomás during training, estimates €16.4M: the market value is 8% below that estimate.

That is a factor of ×1.09. 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 €10.8M, 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.

▼ −0.09A €16.4M▲ +0.33B €10.8M
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
74
Minutes
3,747
Goals
14
Assists
6
Started
41/74
Min / app
51
Cards
12Y 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 Tomás…

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 €15M

Checking API
EmergingEstablishedEliteWorld Class€2M€10M€30M€100k€1M€100MMarket €15MModel A €16.4M

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

Tiago Tomás's percentiles among attackers: Goals per 90 65th, Assists per 90 49th, Minutes, two years 77th, Starts 44th, Minutes, last 365 days 61st, European club minutes 75th65thGoals49thAssists77thMinutes44thStarts61stRecent75thEurope

Dashed ring: the attacker median (50th percentile)

Minutes, two years

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

3,747 this player2,242 attacker median77th 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
€1M
Aug 2020
Peak
€15M
Oct 2025
Model target
€15M
May 2026
Valuations
18
3 club changes
May 2026€15MVfB StuttgartValuation the model is trained to reproduce

May 2026: €15M, VfB Stuttgart. Dotted lines mark the €2M, €10M and €30M tier boundaries.

Show as a table
DateMarket valueClub
2020-08-17€1MSporting CP
2020-10-22€2.5MSporting CP
2021-01-28€6MSporting CP
2021-05-21€6MSporting CP
2021-12-27€5MSporting CP
2022-06-09€7MVfB Stuttgart
2022-11-09€7MVfB Stuttgart
2023-06-22€7MVfB Stuttgart
2023-10-18€8MVfL Wolfsburg
2023-12-14€8MVfL Wolfsburg
2024-03-27€6MVfL Wolfsburg
2024-05-29€6MVfL Wolfsburg
2024-12-20€9MVfL Wolfsburg
2025-03-27€12MVfL Wolfsburg
2025-06-05€12MVfL Wolfsburg
2025-10-14€15MVfB Stuttgart
2025-12-19€15MVfB Stuttgart
2026-05-27€15MVfB Stuttgart

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
−0.087

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 →

Bundesliga451 players · median €5M

Valued above 74% of the 451 Bundesliga players.

€300k€2M€15M€100M€15MSee them in the Explorer →

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

Valued above 81% of the 1,583 attackers.

€20k€300k€5M€75M€15MSee them in the Explorer →

Where Tomás 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).