FairValue

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Jeffrey

Gouweleeuw

CBNetherlands · FC Augsburg

№ 106405Emerging €579k +0.55

Player dossierBundesliga

JeffreyGouweleeuw

CBCentre-BackDefender

Club
FC Augsburg
League
Bundesliga
Nationality
Netherlands
Age
34
Height
188 cm
Foot
Right
Valued
27 May 2026

Reading the valuation

The market values Gouweleeuw at €1M. Model A, which never saw Gouweleeuw during training, estimates €579k: the market value is 73% above that estimate.

That is a factor of ×1.73. 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 €284k, 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.

▲ +0.55A €579k▲ +1.26B €284k
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
49
Minutes
4,276
Goals
1
Assists
5
Started
48/49
Min / app
87
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 Gouweleeuw…

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 €1M

Checking API
EmergingEstablishedEliteWorld Class€2M€10M€30M€100k€1M€100MMarket €1MModel A €579k

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

Jeffrey Gouweleeuw's percentiles among defenders: Goals per 90 41st, Assists per 90 79th, Minutes, two years 74th, Starts 92nd, Minutes, last 365 days 27th, European club minutes 30th41stGoals79thAssists74thMinutes92ndStarts27thRecent30thEurope

Dashed ring: the defender median (50th percentile)

Starts

Share of appearances started rather than entered from the bench.

98% this player83% defender median92nd percentile

18%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
€50k
Apr 2011
Peak
€12M
Dec 2018
Model target
€1M
May 2026
Valuations
33
3 club changes
May 2026€1MFC AugsburgValuation the model is trained to reproduce

May 2026: €1M, FC Augsburg. Dotted lines mark the €2M, €10M and €30M tier boundaries.

Show as a table
DateMarket valueClub
2011-04-07€50ksc Heerenveen/Emmen II
2011-06-28€300ksc Heerenveen/Emmen II
2011-10-21€500kSC Heerenveen
2012-01-10€1.5MSC Heerenveen
2012-07-06€3MSC Heerenveen
2013-01-16€2.5MSC Heerenveen
2013-06-12€2.5MSC Heerenveen
2014-02-11€2.5MAZ Alkmaar
2014-08-11€2.5MAZ Alkmaar
2015-02-16€2.5MAZ Alkmaar
2015-07-01€3MAZ Alkmaar
2016-02-15€3MFC Augsburg
2016-07-22€3.5MFC Augsburg
2017-02-07€3.5MFC Augsburg
2017-06-19€3.5MFC Augsburg
2017-12-28€6MFC Augsburg
2018-06-05€8MFC Augsburg
2018-12-18€12MFC Augsburg
2019-06-05€12MFC Augsburg
2019-12-17€12MFC Augsburg
2020-04-08€9.5MFC Augsburg
2021-02-10€9MFC Augsburg
2021-06-09€7MFC Augsburg
2021-12-22€4.5MFC Augsburg
2022-06-09€3.5MFC Augsburg
2022-11-09€3.5MFC Augsburg
2023-06-22€3MFC Augsburg
2023-12-14€3MFC Augsburg
2024-05-29€2MFC Augsburg
2024-12-20€1.5MFC Augsburg
2025-06-05€1.5MFC Augsburg
2025-12-19€1MFC Augsburg
2026-05-27€1MFC Augsburg

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
+0.546

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 7% of the 451 Bundesliga players.

€300k€2M€15M€100M€1MSee them in the Explorer →

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

Valued above 35% of the 2,065 defenders.

€20k€200k€2M€20M€1MSee them in the Explorer →

Where Gouweleeuw 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).