FairValue

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Gaëtan

Perrin

RWFrance · LOSC Lille

№ 353404Established €7.8M −0.45

Player dossierLigue 1

GaëtanPerrin

RWRight WingerAttack

Club
LOSC Lille
League
Ligue 1
Nationality
France
Age
29
Height
169 cm
Foot
Right
Valued
1 Jun 2026

Reading the valuation

The market values Perrin at €5M. Model A, which never saw Perrin during training, estimates €7.8M: the market value is 36% below that estimate.

That is a factor of ×1.56. 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 €5.9M, 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.

▼ −0.45A €7.8M▼ −0.17B €5.9M
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
69
Minutes
4,160
Goals
13
Assists
15
Started
47/69
Min / app
60
Cards
5Y 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 Perrin…

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 €7.8M

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 1,583 attackers

Gaëtan Perrin's percentiles among attackers: Goals per 90 54th, Assists per 90 93rd, Minutes, two years 83rd, Starts 65th, Minutes, last 365 days 56th, European club minutes 63rd54thGoals93rdAssists83rdMinutes65thStarts56thRecent63rdEurope

Dashed ring: the attacker median (50th percentile)

Assists per 90

Club assists per 90 minutes in the same window.

0.32 this player0.15 attacker median93rd percentile

0.00peer deciles · median line · this player ●0.73

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
Jul 2016
Peak
€8M
Jun 2025
Model target
€5M
Jun 2026
Valuations
23
4 club changes
Jun 2026€5MLOSC LilleValuation the model is trained to reproduce

Jun 2026: €5M, LOSC Lille. Dotted lines mark the €2M, €10M and €30M tier boundaries.

Show as a table
DateMarket valueClub
2016-07-13€250kOlympique Lyon
2017-01-16€300kOlympique Lyon
2017-06-01€300kOlympique Lyon
2018-05-16€600kUS Orléans
2019-01-08€400kUS Orléans
2019-06-27€400kUS Orléans
2020-01-06€400kUS Orléans
2020-04-08€325kUS Orléans
2020-08-14€600kUS Orléans
2020-11-11€700kUS Orléans
2021-06-25€800kUS Orléans
2021-12-27€1MAJ Auxerre
2022-06-02€1.3MAJ Auxerre
2022-11-02€1.2MAJ Auxerre
2023-06-27€1.2MAJ Auxerre
2023-10-27€2MAJ Auxerre
2023-12-13€2.5MAJ Auxerre
2024-06-11€3MAJ Auxerre
2024-12-10€4MAJ Auxerre
2025-03-24€6MAJ Auxerre
2025-06-03€8MAJ Auxerre
2025-12-16€6MFC Krasnodar
2026-06-01€5MLOSC Lille

Audit context group-level, not about this player

Audit group
UEFA
Population gap, Model A
+0.093 95% CI +0.063 to +0.124
This player, market vs held-out A
−0.447

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 45% of the 423 Ligue 1 players.

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

Attackers, all leagues1,583 players · median €2.5M

Valued above 64% of the 1,583 attackers.

€20k€300k€5M€75M€5MSee them in the Explorer →

Where Perrin 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).