FairValue

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

Fofana

GKCote d'Ivoire · Caykur Rizespor

№ 418651Established €2.5M +0.70

Player dossierSüper Lig

YahiaFofana

GKGoalkeeperGoalkeeper

Club
Caykur Rizespor
League
Süper Lig
Nationality
Cote d'Ivoire
Age
25
Height
194 cm
Foot
Right
Valued
21 May 2026

Reading the valuation

The market values Fofana at €5M. Model A, which never saw Fofana during training, estimates €2.5M: the market value is 102% above that estimate.

That is a factor of ×2.02. 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 €4.3M, closer to the market here, although it is usually further off (typical miss ×2.07).

A gap describes the model's arithmetic for this player's inputs, not what the player is worth.

▲ +0.70A €2.5M▲ +0.15B €4.3M
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
60
Minutes
5,400
Started
60/60
Min / app
90
Cards
6Y 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 Fofana…

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 €5M

Checking API
EmergingEstablishedEliteWorld Class€2M€10M€30M€100k€1M€100MMarket €5MModel A €2.5M

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

Yahia Fofana's percentiles among goalkeepers: Minutes, two years 80th, Starts 62nd, Minutes, last 365 days 66th, European club minutes 32nd80thMinutes62ndStarts66thRecent32ndEurope

Dashed ring: the goalkeeper median (50th percentile)

Minutes, two years

Total club minutes in the two-year window: how much the player was used.

5,400 this player2,790 goalkeeper median80th percentile

450peer deciles · median line · this player ●9,210

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
€150k
Mar 2019
Peak
€7M
Jun 2025
Model target
€5M
May 2026
Valuations
21
3 club changes
May 2026€5MCaykur RizesporValuation the model is trained to reproduce

May 2026: €5M, Caykur Rizespor. Dotted lines mark the €2M, €10M and €30M tier boundaries.

Show as a table
DateMarket valueClub
2019-03-14€150kAC Le Havre B
2019-09-30€400kLe Havre AC
2020-01-06€400kLe Havre AC
2020-04-08€350kLe Havre AC
2020-11-11€350kLe Havre AC
2021-06-25€350kLe Havre AC
2021-10-27€1MLe Havre AC
2021-12-27€1.5MLe Havre AC
2022-06-02€2MLe Havre AC
2022-11-02€2.5MAngers SCO
2023-06-27€2MAngers SCO
2023-10-27€2.5MAngers SCO
2023-12-13€2.5MAngers SCO
2024-03-26€3MAngers SCO
2024-06-11€3.5MAngers SCO
2024-12-10€4.5MAngers SCO
2025-03-24€6MAngers SCO
2025-06-03€7MAngers SCO
2025-10-01€6MCaykur Rizespor
2025-12-17€5MCaykur Rizespor
2026-05-21€5MCaykur Rizespor

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
+0.704

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 →

Süper Lig428 players · median €1.2M

Valued above 81% of the 428 Süper Lig players.

€50k€300k€2M€15M€5MSee them in the Explorer →

Goalkeepers, all leagues485 players · median €1M

Valued above 79% of the 485 goalkeepers.

€20k€200k€2M€20M€5MSee them in the Explorer →

Where Fofana 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).