FairValue

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Portrait of Maximilian Beier

Maximilian

Beier

CFGermany · Borussia Dortmund

№ 578392World Class €39.1M +0.02

Image: FootyLogos

Player dossierBundesliga

MaximilianBeier

CFCentre-ForwardAttack

Club
Borussia Dortmund
League
Bundesliga
Nationality
Germany
Age
23
Height
185 cm
Foot
Right
Valued
27 May 2026

Reading the valuation

The market values Beier at €40M. Model A, which never saw Beier during training, estimates €39.1M: the market value is 2% above that estimate.

That is a factor of ×1.02. 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 €39.6M, 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.

▲ +0.02A €39.1M▲ +0.01B €39.6M
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
90
Minutes
5,159
Goals
20
Assists
16
Started
57/90
Min / app
57
Cards
9Y 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 Beier…

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 €40M

Checking API
EmergingEstablishedEliteWorld Class€2M€10M€30M€100k€1M€100MMarket €40MModel A €39.1M

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

Maximilian Beier's percentiles among attackers: Goals per 90 67th, Assists per 90 88th, Minutes, two years 92nd, Starts 57th, Minutes, last 365 days 93rd, European club minutes 89th67thGoals88thAssists92ndMinutes57thStarts93rdRecent89thEurope

Dashed ring: the attacker median (50th percentile)

Minutes, last 365 days

Club minutes in the final year of the window: recent involvement, or the absence of it.

2,820 this player1,301 attacker median93rd percentile

0peer deciles · median line · this player ●4,703

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
€300k
Feb 2020
Peak
€40M
Mar 2026
Model target
€40M
May 2026
Valuations
21
4 club changes
May 2026€40MBorussia DortmundValuation the model is trained to reproduce

May 2026: €40M, Borussia Dortmund. Dotted lines mark the €2M, €10M and €30M tier boundaries.

Show as a table
DateMarket valueClub
2020-02-11€300kTSG 1899 Hoffenheim U19
2020-07-08€1.5MTSG 1899 Hoffenheim
2021-02-10€2MTSG 1899 Hoffenheim
2021-06-09€2MTSG 1899 Hoffenheim
2021-12-15€2MHannover 96
2022-03-23€2.5MHannover 96
2022-06-16€3MHannover 96
2022-11-30€3MHannover 96
2023-03-31€2.5MHannover 96
2023-06-28€2MHannover 96
2023-10-18€8MTSG 1899 Hoffenheim
2023-12-14€12MTSG 1899 Hoffenheim
2024-03-27€24MTSG 1899 Hoffenheim
2024-05-29€30MTSG 1899 Hoffenheim
2024-12-20€30MBorussia Dortmund
2025-03-27€25MBorussia Dortmund
2025-06-05€25MBorussia Dortmund
2025-10-14€30MBorussia Dortmund
2025-12-19€30MBorussia Dortmund
2026-03-20€40MBorussia Dortmund
2026-05-27€40MBorussia Dortmund

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
+0.023

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 93% of the 451 Bundesliga players.

€300k€2M€15M€100M€40MSee them in the Explorer →

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

Valued above 95% of the 1,583 attackers.

€20k€300k€5M€75M€40MSee them in the Explorer →

Where Beier 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).