FairValue

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  • EnvironmentOverviewWhat FairValue measures, what it found, where to go next.
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Zian

Flemming

CFNetherlands · Burnley FC

№ 411537Elite €17.3M −0.36

Player dossierPremier League

ZianFlemming

CFCentre-ForwardAttack

Club
Burnley FC
League
Premier League
Nationality
Netherlands
Age
27
Height
185 cm
Foot
Right
Valued
3 Jun 2026

Reading the valuation

The market values Flemming at €12M. Model A, which never saw Flemming during training, estimates €17.3M: the market value is 31% below that estimate.

That is a factor of ×1.44. 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 €6.8M, 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.

▼ −0.36A €17.3M▲ +0.56B €6.8M
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
32
Minutes
1,950
Goals
12
Assists
0
Started
23/32
Min / app
61
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 Flemming…

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 €12M

Checking API
EmergingEstablishedEliteWorld Class€2M€10M€30M€100k€1M€100MMarket €12MModel A €17.3M

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

Zian Flemming's percentiles among attackers: Goals per 90 92nd, Assists per 90 6th, Minutes, two years 43rd, Starts 71st, Minutes, last 365 days 71st, European club minutes 28th92ndGoals6thAssists43rdMinutes71stStarts71stRecent28thEurope

Dashed ring: the attacker median (50th percentile)

Goals per 90

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

0.55 this player0.26 attacker median92nd 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
€50k
Jun 2017
Peak
€12M
Mar 2026
Model target
€12M
Jun 2026
Valuations
26
6 club changes
Jun 2026€12MBurnley FCValuation the model is trained to reproduce

Jun 2026: €12M, Burnley FC. Dotted lines mark the €2M, €10M and €30M tier boundaries.

Show as a table
DateMarket valueClub
2017-06-21€50kAjax Amsterdam U19
2018-03-01€125kAjax Amsterdam U21
2018-06-29€250kAjax Amsterdam U21
2018-10-04€600kPEC Zwolle
2018-12-28€900kPEC Zwolle
2019-06-12€750kPEC Zwolle
2020-01-17€750kNEC Nijmegen
2020-04-08€675kNEC Nijmegen
2020-06-29€800kNEC Nijmegen
2020-10-14€800kFortuna Sittard
2021-01-06€900kFortuna Sittard
2021-03-09€1MFortuna Sittard
2021-05-19€1.2MFortuna Sittard
2022-01-05€1.2MFortuna Sittard
2022-06-08€2MFortuna Sittard
2022-09-14€2.5MMillwall FC
2022-10-27€3MMillwall FC
2023-06-01€4.2MMillwall FC
2023-12-21€4.2MMillwall FC
2024-05-24€4.2MMillwall FC
2024-12-30€4MBurnley FC
2025-05-27€6.5MBurnley FC
2025-10-17€8MBurnley FC
2025-12-09€10MBurnley FC
2026-03-09€12MBurnley FC
2026-06-03€12MBurnley FC

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
−0.364

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 36% of the 555 Premier League players.

€150k€1M€7.5M€50M€12MSee them in the Explorer →

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

Valued above 79% of the 1,583 attackers.

€20k€300k€5M€75M€12MSee them in the Explorer →

Where Flemming 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).