FairValue

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Portrait of Lukas Klostermann

Lukas

Klostermann

CBGermany · RB Leipzig

№ 215599Established €1.8M +0.65

Image: FootyLogos

Player dossierBundesliga

LukasKlostermann

CBCentre-BackDefender

Club
RB Leipzig
League
Bundesliga
Nationality
Germany
Age
29
Height
189 cm
Foot
Right
Valued
27 May 2026

Reading the valuation

The market values Klostermann at €3.5M. Model A, which never saw Klostermann during training, estimates €1.8M: the market value is 92% above that estimate.

That is a factor of ×1.92. 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 €602k, 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.

▲ +0.65A €1.8M▲ +1.76B €602k
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
42
Minutes
2,203
Goals
1
Assists
1
Started
24/42
Min / app
52
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 Klostermann…

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 €3.5M

Checking API
EmergingEstablishedEliteWorld Class€2M€10M€30M€100k€1M€100MMarket €3.5MModel A €1.8M

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

Lukas Klostermann's percentiles among defenders: Goals per 90 57th, Assists per 90 51st, Minutes, two years 37th, Starts 12th, Minutes, last 365 days 5th, European club minutes 62nd57thGoals51stAssists37thMinutes12thStarts5thRecent62ndEurope

Dashed ring: the defender median (50th percentile)

European club minutes

Share of minutes played in UEFA club competitions.

2% this player0% defender median62nd 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
€100k
Mar 2014
Peak
€38M
Sept 2020
Model target
€3.5M
May 2026
Valuations
37
1 club change
May 2026€3.5MRB LeipzigValuation the model is trained to reproduce

May 2026: €3.5M, RB Leipzig. Dotted lines mark the €2M, €10M and €30M tier boundaries.

Show as a table
DateMarket valueClub
2014-03-28€100kVfL Bochum
2014-06-30€350kVfL Bochum
2015-01-13€350kRB Leipzig
2015-03-29€500kRB Leipzig
2015-07-01€1MRB Leipzig
2015-10-22€1.5MRB Leipzig
2016-02-11€2MRB Leipzig
2016-07-22€3MRB Leipzig
2017-02-07€3MRB Leipzig
2017-06-19€3MRB Leipzig
2017-10-18€5MRB Leipzig
2017-12-28€7.5MRB Leipzig
2018-04-04€12MRB Leipzig
2018-06-05€12MRB Leipzig
2018-12-18€16MRB Leipzig
2019-03-06€22MRB Leipzig
2019-06-05€30MRB Leipzig
2019-12-17€35MRB Leipzig
2020-04-08€28MRB Leipzig
2020-07-08€35MRB Leipzig
2020-09-16€38MRB Leipzig
2021-02-10€32MRB Leipzig
2021-06-01€27MRB Leipzig
2021-12-22€23MRB Leipzig
2022-06-09€18MRB Leipzig
2022-09-21€14MRB Leipzig
2022-11-09€14MRB Leipzig
2023-03-29€12MRB Leipzig
2023-06-22€12MRB Leipzig
2023-10-18€8MRB Leipzig
2023-12-14€8MRB Leipzig
2024-05-29€8MRB Leipzig
2024-12-20€8MRB Leipzig
2025-06-05€8MRB Leipzig
2025-10-14€5MRB Leipzig
2025-12-19€3.5MRB Leipzig
2026-05-27€3.5MRB Leipzig

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
+0.653

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 37% of the 451 Bundesliga players.

€300k€2M€15M€100M€3.5MSee them in the Explorer →

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

Valued above 63% of the 2,065 defenders.

€20k€200k€2M€20M€3.5MSee them in the Explorer →

Where Klostermann 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).