FairValue

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  • EnvironmentOverviewWhat FairValue measures, what it found, where to go next.
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Portrait of Yves Bissouma

Yves

Bissouma

DMMali · Tottenham Hotspur

№ 410425Elite €8.1M +0.21

Image: FootyLogos

Player dossierPremier League

YvesBissouma

DMDefensive MidfieldMidfield

Club
Tottenham Hotspur
League
Premier League
Nationality
Mali
Age
29
Height
182 cm
Foot
Right
Valued
3 Jun 2026

Reading the valuation

The market values Bissouma at €10M. Model A, which never saw Bissouma during training, estimates €8.1M: the market value is 23% above 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 €2.4M, 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 €8.1M▲ +1.43B €2.4M
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
51
Minutes
2,837
Goals
2
Assists
0
Started
31/51
Min / app
56
Cards
14Y 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 Bissouma…

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 €10M

Checking API
EmergingEstablishedEliteWorld Class€2M€10M€30M€100k€1M€100MMarket €10MModel A €8.1M

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

Yves Bissouma's percentiles among midfielders: Goals per 90 40th, Assists per 90 8th, Minutes, two years 55th, Starts 35th, Minutes, last 365 days 16th, European club minutes 89th40thGoals8thAssists55thMinutes35thStarts16thRecent89thEurope

Dashed ring: the midfielder median (50th percentile)

European club minutes

Share of minutes played in UEFA club competitions.

23% this player0% midfielder median89th 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
€250k
Jan 2017
Peak
€35M
Mar 2022
Model target
€10M
Jun 2026
Valuations
30
2 club changes
Jun 2026€10MTottenham HotspurValuation the model is trained to reproduce

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

Show as a table
DateMarket valueClub
2017-01-16€250kLOSC Lille
2017-06-01€800kLOSC Lille
2017-10-12€2MLOSC Lille
2018-01-24€4MLOSC Lille
2018-06-04€8MLOSC Lille
2018-08-13€15MBrighton & Hove Albion
2018-12-19€15MBrighton & Hove Albion
2019-06-13€15MBrighton & Hove Albion
2019-12-10€12MBrighton & Hove Albion
2020-04-08€9.5MBrighton & Hove Albion
2020-10-13€13MBrighton & Hove Albion
2021-03-18€17MBrighton & Hove Albion
2021-06-08€25MBrighton & Hove Albion
2021-12-23€25MBrighton & Hove Albion
2022-03-29€35MBrighton & Hove Albion
2022-06-15€35MBrighton & Hove Albion
2022-11-03€32MTottenham Hotspur
2023-03-16€25MTottenham Hotspur
2023-06-20€18MTottenham Hotspur
2023-10-09€30MTottenham Hotspur
2023-12-19€30MTottenham Hotspur
2024-03-14€35MTottenham Hotspur
2024-05-27€35MTottenham Hotspur
2024-12-16€35MTottenham Hotspur
2025-03-18€28MTottenham Hotspur
2025-05-30€25MTottenham Hotspur
2025-10-17€20MTottenham Hotspur
2025-12-09€15MTottenham Hotspur
2026-03-09€12MTottenham Hotspur
2026-06-03€10MTottenham Hotspur

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
+0.210

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 32% of the 555 Premier League players.

€150k€1M€7.5M€50M€10MSee them in the Explorer →

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

Valued above 78% of the 1,687 midfielders.

€20k€200k€2M€20M€10MSee them in the Explorer →

Where Bissouma 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).