FairValue

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  • EnvironmentOverviewWhat FairValue measures, what it found, where to go next.
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Portrait of Harry Maguire

Harry

Maguire

CBEngland · Manchester United

№ 177907Established €5.4M +0.39

Image: FootyLogos

Player dossierPremier League

HarryMaguire

CBCentre-BackDefender

Club
Manchester United
League
Premier League
Nationality
England
Age
33
Height
194 cm
Foot
Right
Valued
3 Jun 2026

Reading the valuation

The market values Maguire at €8M. Model A, which never saw Maguire during training, estimates €5.4M: the market value is 48% above that estimate.

That is a factor of ×1.48. 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 €4.5M, 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.

▲ +0.39A €5.4M▲ +0.58B €4.5M
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
64
Minutes
4,450
Goals
6
Assists
3
Started
49/64
Min / app
70
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 Maguire…

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 €8M

Checking API
EmergingEstablishedEliteWorld Class€2M€10M€30M€100k€1M€100MMarket €8MModel A €5.4M

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 2,065 defenders

Harry Maguire's percentiles among defenders: Goals per 90 92nd, Assists per 90 63rd, Minutes, two years 76th, Starts 38th, Minutes, last 365 days 53rd, European club minutes 76th92ndGoals63rdAssists76thMinutes38thStarts53rdRecent76thEurope

Dashed ring: the defender median (50th percentile)

Goals per 90

Club goals per 90 minutes played in the two years to the valuation date.

0.12 this player0.03 defender median92nd percentile

0.00peer deciles · median line · this player ●0.41

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
€50k
Sept 2011
Peak
€70M
Sept 2019
Model target
€8M
Jun 2026
Valuations
38
5 club changes
Jun 2026€8MManchester UnitedValuation the model is trained to reproduce

Jun 2026: €8M, Manchester United. Dotted lines mark the €2M, €10M and €30M tier boundaries.

Show as a table
DateMarket valueClub
2011-09-05€50kSheffield United
2012-03-14€150kSheffield United
2012-11-17€250kSheffield United
2013-09-16€750kSheffield United
2014-08-12€3MHull City
2015-02-24€2MWigan Athletic
2015-09-24€2MHull City
2016-04-20€2.5MHull City
2016-08-01€2.5MHull City
2017-02-20€2.5MHull City
2017-06-28€8MHull City
2018-01-02€15MLeicester City
2018-05-28€25MLeicester City
2018-07-16€35MLeicester City
2018-08-13€45MLeicester City
2018-12-19€45MLeicester City
2019-06-13€50MLeicester City
2019-09-12€70MManchester United
2019-12-10€70MManchester United
2020-04-08€56MManchester United
2020-10-13€50MManchester United
2020-12-17€40MManchester United
2021-03-18€40MManchester United
2021-05-28€45MManchester United
2021-07-15€50MManchester United
2021-12-23€48MManchester United
2022-03-29€40MManchester United
2022-06-15€38MManchester United
2022-09-15€30MManchester United
2022-11-03€30MManchester United
2023-03-16€25MManchester United
2023-06-20€20MManchester United
2023-12-19€20MManchester United
2024-05-27€18MManchester United
2024-12-16€15MManchester United
2025-05-30€13MManchester United
2025-12-09€10MManchester United
2026-06-03€8MManchester United

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
+0.395

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 27% of the 555 Premier League players.

€150k€1M€7.5M€50M€8MSee them in the Explorer →

Defenders, all leagues2,065 players · median €2M

Valued above 78% of the 2,065 defenders.

€20k€200k€2M€20M€8MSee them in the Explorer →

Where Maguire 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).