FairValue

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  • EnvironmentOverviewWhat FairValue measures, what it found, where to go next.
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  • TerminalMarket LandscapeHow observed value is distributed, and where the model drifts.

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Portrait of Dário Essugo

Dário

Essugo

DMPortugal · Chelsea FC

№ 670717Elite €6.6M +0.82

Image: FootyLogos

Player dossierPremier League

DárioEssugo

DMDefensive MidfieldMidfield

Club
Chelsea FC
League
Premier League
Nationality
Portugal
Age
21
Height
178 cm
Foot
Right
Valued
3 Jun 2026

Reading the valuation

The market values Essugo at €15M. Model A, which never saw Essugo during training, estimates €6.6M: the market value is 126% above that estimate.

That is a factor of ×2.26. 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 €4.9M, 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.

▲ +0.82A €6.6M▲ +1.13B €4.9M
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
37
Minutes
2,115
Goals
1
Assists
2
Started
25/37
Min / app
57
Cards
13Y 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 Essugo…

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 €6.6M

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 1,687 midfielders

Dário Essugo's percentiles among midfielders: Goals per 90 30th, Assists per 90 46th, Minutes, two years 40th, Starts 47th, Minutes, last 365 days 4th, European club minutes 61st30thGoals46thAssists40thMinutes47thStarts4thRecent61stEurope

Dashed ring: the midfielder median (50th percentile)

European club minutes

Share of minutes played in UEFA club competitions.

2% this player0% midfielder median61st percentile

0%peer deciles · median line · this player ●85%

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
Dec 2021
Peak
€20M
Jun 2025
Model target
€15M
Jun 2026
Valuations
12
5 club changes
Jun 2026€15MChelsea FCValuation the model is trained to reproduce

Jun 2026: €15M, Chelsea FC. Dotted lines mark the €2M, €10M and €30M tier boundaries.

Show as a table
DateMarket valueClub
2021-12-27€1MSporting CP B
2023-03-02€2MSporting CP B
2023-06-16€2MSporting CP B
2023-12-27€2MSporting CP
2024-03-08€3MGD Chaves
2024-06-06€3.5MGD Chaves
2024-12-27€8MUD Las Palmas
2025-03-21€15MUD Las Palmas
2025-06-09€20MSporting CP
2025-12-09€20MChelsea FC
2026-03-09€17MChelsea FC
2026-06-03€15MChelsea FC

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
+0.816

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 43% of the 555 Premier League players.

€150k€1M€7.5M€50M€15MSee them in the Explorer →

Midfielders, all leagues1,687 players · median €2M

Valued above 83% of the 1,687 midfielders.

€20k€200k€2M€20M€15MSee them in the Explorer →

Where Essugo 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).