FairValue

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Portrait of Donyell Malen

Donyell

Malen

CFNetherlands · AS Roma

№ 326029World Class €31.6M +0.35

Image: FootyLogos

Player dossierSerie A

DonyellMalen

CFCentre-ForwardAttack

Club
AS Roma
League
Serie A
Nationality
Netherlands
Age
27
Height
178 cm
Foot
Right
Valued
29 May 2026

Reading the valuation

The market values Malen at €45M. Model A, which never saw Malen during training, estimates €31.6M: the market value is 42% above that estimate.

That is a factor of ×1.42. 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 €26M, 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.

▲ +0.35A €31.6M▲ +0.55B €26M
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
88
Minutes
4,153
Goals
30
Assists
6
Started
44/88
Min / app
47
Cards
3Y 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 Malen…

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 €45M

Checking API
EmergingEstablishedEliteWorld Class€2M€10M€30M€100k€1M€100MMarket €45MModel A €31.6M

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

Donyell Malen's percentiles among attackers: Goals per 90 97th, Assists per 90 43rd, Minutes, two years 83rd, Starts 35th, Minutes, last 365 days 92nd, European club minutes 82nd97thGoals43rdAssists83rdMinutes35thStarts92ndRecent82ndEurope

Dashed ring: the attacker median (50th percentile)

Goals per 90

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

0.65 this player0.26 attacker median97th percentile

0.00peer deciles · median line · this player ●1.17

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
€200k
Aug 2017
Peak
€45M
May 2026
Model target
€45M
May 2026
Valuations
28
4 club changes
May 2026€45MAS RomaValuation the model is trained to reproduce

May 2026: €45M, AS Roma. Dotted lines mark the €2M, €10M and €30M tier boundaries.

Show as a table
DateMarket valueClub
2017-08-31€200kPSV Eindhoven U21
2018-01-17€500kPSV Eindhoven U21
2018-06-12€750kPSV Eindhoven U21
2018-10-04€2.5MPSV Eindhoven
2018-12-28€5MPSV Eindhoven
2019-06-12€7MPSV Eindhoven
2019-09-19€18MPSV Eindhoven
2019-12-18€28MPSV Eindhoven
2020-04-08€25MPSV Eindhoven
2020-10-14€25MPSV Eindhoven
2021-03-09€30MPSV Eindhoven
2021-05-27€30MPSV Eindhoven
2021-12-22€30MBorussia Dortmund
2022-03-24€27MBorussia Dortmund
2022-06-09€27MBorussia Dortmund
2022-11-09€20MBorussia Dortmund
2023-03-29€16MBorussia Dortmund
2023-06-22€28MBorussia Dortmund
2023-10-18€35MBorussia Dortmund
2023-12-14€35MBorussia Dortmund
2024-03-27€40MBorussia Dortmund
2024-05-29€40MBorussia Dortmund
2024-12-20€28MBorussia Dortmund
2025-03-18€25MAston Villa
2025-05-30€25MAston Villa
2025-12-09€25MAston Villa
2026-03-24€35MAS Roma
2026-05-29€45MAS Roma

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
+0.354

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 →

Serie A507 players · median €5.5M

Valued above 97% of the 507 Serie A players.

€100k€750k€5M€30M€45MSee them in the Explorer →

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

Valued above 96% of the 1,583 attackers.

€20k€300k€5M€75M€45MSee them in the Explorer →

Where Malen 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).