FairValue

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

Epolo

GKDR Congo · Standard Liège

№ 680218Established €5.3M +0.42

Player dossierPro League

MatthieuEpolo

GKGoalkeeperGoalkeeper

Club
Standard Liège
League
Pro League
Nationality
DR Congo
Age
21
Height
189 cm
Foot
Right
Valued
4 Jun 2026

Reading the valuation

The market values Epolo at €8M. Model A, which never saw Epolo during training, estimates €5.3M: the market value is 52% above that estimate.

That is a factor of ×1.52. 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 €3.9M, 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.

▲ +0.42A €5.3M▲ +0.72B €3.9M
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
48
Minutes
4,275
Started
47/48
Min / app
89
Cards
1Y 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 Epolo…

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 €8M

Checking API
EmergingEstablishedEliteWorld Class€2M€10M€30M€100k€1M€100MMarket €8MModel A €5.3M

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 485 goalkeepers

Matthieu Epolo's percentiles among goalkeepers: Minutes, two years 69th, Starts 19th, Minutes, last 365 days 70th, European club minutes 32nd69thMinutes19thStarts70thRecent32ndEurope

Dashed ring: the goalkeeper median (50th percentile)

Minutes, last 365 days

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

2,610 this player1,560 goalkeeper median70th percentile

0peer deciles · median line · this player ●4,970

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
€25k
Jul 2021
Peak
€8M
Jun 2026
Model target
€8M
Jun 2026
Valuations
14
0 club changes
Jun 2026€8MStandard LiègeValuation the model is trained to reproduce

Jun 2026: €8M, Standard Liège. Dotted lines mark the €2M, €10M and €30M tier boundaries.

Show as a table
DateMarket valueClub
2021-07-23€25kStandard Liège
2021-10-06€100kStandard Liège
2022-01-06€100kStandard Liège
2022-04-12€100kStandard Liège
2022-10-05€200kStandard Liège
2022-12-22€200kStandard Liège
2023-05-30€250kStandard Liège
2023-12-19€500kStandard Liège
2024-06-04€800kStandard Liège
2024-10-02€3MStandard Liège
2024-12-11€3MStandard Liège
2025-06-12€4MStandard Liège
2025-12-10€5MStandard Liège
2026-06-04€8MStandard Liège

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
+0.421

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 →

Pro League350 players · median €1.8M

Valued above 93% of the 350 Pro League players.

€100k€750k€5M€30M€8MSee them in the Explorer →

Goalkeepers, all leagues485 players · median €1M

Valued above 85% of the 485 goalkeepers.

€20k€200k€2M€20M€8MSee them in the Explorer →

Where Epolo 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).