FairValue

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Portrait of Jeffrey Schlupp

Jeffrey

Schlupp

LMGhana · Norwich City

№ 157506Established €699k +1.05

Image: FootyLogos

Player dossierPremier League

JeffreySchlupp

LMLeft MidfieldMidfield

Club
Norwich City
League
Premier League
Nationality
Ghana
Age
32
Height
178 cm
Foot
Left
Valued
3 Dec 2025

Reading the valuation

The market values Schlupp at €2M. Model A, which never saw Schlupp during training, estimates €699k: the market value is 186% above that estimate.

That is a factor of ×2.86. 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 €553k, 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.

▲ +1.05A €699k▲ +1.29B €553k
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
46
Minutes
1,632
Goals
2
Assists
3
Started
16/46
Min / app
35
Cards
2Y 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 Schlupp…

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 €2M

Checking API
EmergingEstablishedEliteWorld Class€2M€10M€30M€100k€1M€100MMarket €2MModel A €699k

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

Jeffrey Schlupp's percentiles among midfielders: Goals per 90 59th, Assists per 90 75th, Minutes, two years 28th, Starts 7th, Minutes, last 365 days 27th, European club minutes 68th59thGoals75thAssists28thMinutes7thStarts27thRecent68thEurope

Dashed ring: the midfielder median (50th percentile)

Assists per 90

Club assists per 90 minutes in the same window.

0.17 this player0.09 midfielder median75th percentile

0.00peer deciles · median line · this player ●0.74

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
Oct 2010
Peak
€12M
Dec 2019
Model target
€2M
Dec 2025
Valuations
35
3 club changes
Dec 2025€2MNorwich CityValuation the model is trained to reproduce

Dec 2025: €2M, Norwich City. Dotted lines mark the €2M, €10M and €30M tier boundaries.

Show as a table
DateMarket valueClub
2010-10-24€50kLeicester City
2011-09-14€100kLeicester City
2011-10-26€250kLeicester City
2012-02-07€750kLeicester City
2012-06-22€750kLeicester City
2013-03-02€500kLeicester City
2013-07-11€1MLeicester City
2014-01-08€900kLeicester City
2014-08-12€1MLeicester City
2015-02-12€3MLeicester City
2015-07-01€6MLeicester City
2016-02-09€7MLeicester City
2016-08-01€8MLeicester City
2017-02-20€8MCrystal Palace
2017-06-28€8MCrystal Palace
2018-01-02€9MCrystal Palace
2018-05-28€9MCrystal Palace
2018-12-19€9MCrystal Palace
2019-06-13€10MCrystal Palace
2019-12-10€12MCrystal Palace
2020-04-08€9.5MCrystal Palace
2020-10-13€10MCrystal Palace
2021-03-18€9MCrystal Palace
2021-06-08€9MCrystal Palace
2021-12-23€8MCrystal Palace
2022-06-15€8MCrystal Palace
2022-11-03€8MCrystal Palace
2023-06-20€7MCrystal Palace
2023-12-19€7MCrystal Palace
2024-05-27€7MCrystal Palace
2024-12-16€6MCrystal Palace
2025-03-12€5MCeltic FC
2025-06-17€3MCeltic FC
2025-10-06€2.5MNorwich City
2025-12-03€2MNorwich City

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
+1.051

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 9% of the 555 Premier League players.

€150k€1M€7.5M€50M€2MSee them in the Explorer →

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

Valued above 46% of the 1,687 midfielders.

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

Where Schlupp 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).