FairValue

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  • EnvironmentOverviewWhat FairValue measures, what it found, where to go next.
  • EnvironmentTerminalExplore, compare and track players; market, league and model views.
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  • TerminalPlayer ExplorerSearch, filter and sort the player export.
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  • TerminalMarket LandscapeHow observed value is distributed, and where the model drifts.

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Mory

Gbane

DMCote d'Ivoire · Stade Reims

№ 717585Established €4.9M −0.21

Player dossierLigue 1

MoryGbane

DMDefensive MidfieldMidfield

Club
Stade Reims
League
Ligue 1
Nationality
Cote d'Ivoire
Age
24
Height
188 cm
Foot
Right
Valued
11 Dec 2025

Reading the valuation

The market values Gbane at €4M. Model A, which never saw Gbane during training, estimates €4.9M: the market value is 19% below that estimate.

That is a factor of ×1.23. 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 €3.2M, 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.

▼ −0.21A €4.9M▲ +0.23B €3.2M
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
50
Minutes
4,151
Goals
2
Assists
1
Started
47/50
Min / app
83
Cards
8Y 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 Gbane…

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 €4M

Checking API
EmergingEstablishedEliteWorld Class€2M€10M€30M€100k€1M€100MMarket €4MModel A €4.9M

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 1,687 midfielders

Mory Gbane's percentiles among midfielders: Goals per 90 30th, Assists per 90 18th, Minutes, two years 76th, Starts 92nd, Minutes, last 365 days 57th, European club minutes 30th30thGoals18thAssists76thMinutes92ndStarts57thRecent30thEurope

Dashed ring: the midfielder median (50th percentile)

Starts

Share of appearances started rather than entered from the bench.

94% this player69% midfielder median92nd percentile

7%peer deciles · median line · this player ●100%

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
Jun 2021
Peak
€4M
Mar 2025
Model target
€4M
Dec 2025
Valuations
13
3 club changes
Dec 2025€4MStade ReimsValuation the model is trained to reproduce

Dec 2025: €4M, Stade Reims. Dotted lines mark the €2M, €10M and €30M tier boundaries.

Show as a table
DateMarket valueClub
2021-06-30€200kNK BSK Bijelo Brdo
2021-12-30€150kNK BSK Bijelo Brdo
2022-06-14€250kNK BSK Bijelo Brdo
2022-09-12€1MFC Khimki
2022-11-21€800kFC Khimki
2023-06-14€700kFC Khimki
2023-12-27€600kGil Vicente FC
2024-03-08€1MGil Vicente FC
2024-06-06€1.5MGil Vicente FC
2024-12-19€2.5MGil Vicente FC
2025-03-24€4MStade Reims
2025-06-03€4MStade Reims
2025-12-11€4MStade Reims

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
−0.206

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 37% of the 423 Ligue 1 players.

€100k€750k€5M€30M€4MSee them in the Explorer →

Midfielders, all leagues1,687 players · median €2M

Valued above 61% of the 1,687 midfielders.

€20k€200k€2M€20M€4MSee them in the Explorer →

Where Gbane 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).