FairValue

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Mbemba

CBDR Congo · LOSC Lille

№ 203348Established €2.3M −0.15

Player dossierLigue 1

ChancelMbemba

CBCentre-BackDefender

Club
LOSC Lille
League
Ligue 1
Nationality
DR Congo
Age
31
Height
182 cm
Foot
Right
Valued
1 Jun 2026

Reading the valuation

The market values Mbemba at €2M. Model A, which never saw Mbemba during training, estimates €2.3M: the market value is 14% below that estimate.

That is a factor of ×1.16. 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 €1.1M, 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.

▼ −0.15A €2.3M▲ +0.63B €1.1M
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
21
Minutes
1,657
Goals
0
Assists
1
Started
16/21
Min / app
79
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 Mbemba…

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 €2M

Checking API
EmergingEstablishedEliteWorld Class€2M€10M€30M€100k€1M€100MMarket €2MModel A €2.3M

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 2,065 defenders

Chancel Mbemba's percentiles among defenders: Goals per 90 18th, Assists per 90 59th, Minutes, two years 26th, Starts 37th, Minutes, last 365 days 49th, European club minutes 99th18thGoals59thAssists26thMinutes37thStarts49thRecent99thEurope

Dashed ring: the defender median (50th percentile)

European club minutes

Share of minutes played in UEFA club competitions.

43% this player0% defender median99th 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
€500k
Aug 2013
Peak
€20M
Mar 2023
Model target
€2M
Jun 2026
Valuations
36
4 club changes
Jun 2026€2MLOSC LilleValuation the model is trained to reproduce

Jun 2026: €2M, LOSC Lille. Dotted lines mark the €2M, €10M and €30M tier boundaries.

Show as a table
DateMarket valueClub
2013-08-12€500kRSC Anderlecht
2013-10-08€1.5MRSC Anderlecht
2014-02-10€4MRSC Anderlecht
2014-06-28€4MRSC Anderlecht
2015-01-07€6MRSC Anderlecht
2015-06-24€8MRSC Anderlecht
2015-10-14€10MNewcastle United
2016-02-09€10MNewcastle United
2016-09-01€10MNewcastle United
2017-02-27€8MNewcastle United
2017-06-28€7MNewcastle United
2018-01-02€7MNewcastle United
2018-05-28€6MNewcastle United
2018-11-01€4.5MFC Porto
2019-01-11€4MFC Porto
2019-06-07€3.5MFC Porto
2019-12-30€4MFC Porto
2020-04-08€3.2MFC Porto
2020-08-17€8MFC Porto
2021-01-28€11MFC Porto
2021-03-25€13MFC Porto
2021-05-21€16MFC Porto
2021-12-27€15MFC Porto
2022-05-31€17MFC Porto
2022-11-02€17MOlympique Marseille
2023-03-27€20MOlympique Marseille
2023-06-27€20MOlympique Marseille
2023-10-16€15MOlympique Marseille
2023-12-18€15MOlympique Marseille
2024-06-03€15MOlympique Marseille
2024-10-07€8MOlympique Marseille
2024-12-10€5MOlympique Marseille
2025-03-24€3MOlympique Marseille
2025-06-03€2MOlympique Marseille
2025-12-15€2.5MLOSC Lille
2026-06-01€2MLOSC Lille

Audit context group-level, not about this player

Audit group
non-UEFA
Population gap, Model A
+0.093 95% CI +0.063 to +0.124
This player, market vs held-out A
−0.147

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 →

Ligue 1423 players · median €5M

Valued above 20% of the 423 Ligue 1 players.

€100k€750k€5M€30M€2MSee them in the Explorer →

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

Valued above 49% of the 2,065 defenders.

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

Where Mbemba 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).