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Portrait of Leon Bailey

Leon

Bailey

RWJamaica · Aston Villa

№ 387626Elite €18.7M −0.29

Image: FootyLogos

Player dossierPremier League

LeonBailey

RWRight WingerAttack

Club
Aston Villa
League
Premier League
Nationality
Jamaica
Age
28
Height
178 cm
Foot
Left
Valued
3 Jun 2026

Reading the valuation

The market values Bailey at €14M. Model A, which never saw Bailey during training, estimates €18.7M: the market value is 25% below that estimate.

That is a factor of ×1.33. 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 €12.4M, 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.

▼ −0.29A €18.7M▲ +0.12B €12.4M
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
66
Minutes
2,789
Goals
3
Assists
6
Started
29/66
Min / app
42
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 Bailey…

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 €14M

Checking API
EmergingEstablishedEliteWorld Class€2M€10M€30M€100k€1M€100MMarket €14MModel A €18.7M

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

Leon Bailey's percentiles among attackers: Goals per 90 13th, Assists per 90 68th, Minutes, two years 63rd, Starts 26th, Minutes, last 365 days 31st, European club minutes 87th13thGoals68thAssists63rdMinutes26thStarts31stRecent87thEurope

Dashed ring: the attacker median (50th percentile)

European club minutes

Share of minutes played in UEFA club competitions.

23% this player0% attacker median87th percentile

0%peer deciles · median line · this player ●100%

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
Sept 2015
Peak
€45M
Apr 2018
Model target
€14M
Jun 2026
Valuations
31
4 club changes
Jun 2026€14MAston VillaValuation the model is trained to reproduce

Jun 2026: €14M, Aston Villa. Dotted lines mark the €2M, €10M and €30M tier boundaries.

Show as a table
DateMarket valueClub
2015-09-15€400kKRC Genk
2015-10-22€2.5MKRC Genk
2016-02-07€4MKRC Genk
2016-07-15€7.5MKRC Genk
2016-10-20€12.5MKRC Genk
2017-01-21€12.5MKRC Genk
2017-06-19€11MBayer 04 Leverkusen
2017-12-28€28MBayer 04 Leverkusen
2018-04-04€45MBayer 04 Leverkusen
2018-06-05€45MBayer 04 Leverkusen
2018-12-18€35MBayer 04 Leverkusen
2019-06-05€40MBayer 04 Leverkusen
2019-12-17€37MBayer 04 Leverkusen
2020-04-08€29.5MBayer 04 Leverkusen
2021-02-10€35MBayer 04 Leverkusen
2021-06-09€35MBayer 04 Leverkusen
2021-12-23€32MAston Villa
2022-03-29€30MAston Villa
2022-06-15€25MAston Villa
2022-11-03€25MAston Villa
2023-06-20€28MAston Villa
2023-12-19€30MAston Villa
2024-03-14€35MAston Villa
2024-05-27€42MAston Villa
2024-12-16€38MAston Villa
2025-03-18€32MAston Villa
2025-05-30€28MAston Villa
2025-10-07€22MAS Roma
2025-12-23€18MAS Roma
2026-03-09€16MAston Villa
2026-06-03€14MAston Villa

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
−0.288

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 42% of the 555 Premier League players.

€150k€1M€7.5M€50M€14MSee them in the Explorer →

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

Valued above 81% of the 1,583 attackers.

€20k€300k€5M€75M€14MSee them in the Explorer →

Where Bailey 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).