Gauthier
Hein
RWFrance · FC Metz
Player dossierLigue 1
GauthierHein
RWRight WingerAttack
- Club
- FC Metz
- League
- Ligue 1
- Nationality
- France
- Age
- 29
- Height
- 170 cm
- Foot
- Left
- Valued
- 1 Jun 2026
Reading the valuation
The market values Hein at €5M. Model A, which never saw Hein during training, estimates €3.3M: the market value is 53% above that estimate.
That is a factor of ×1.53. 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 €3.2M, 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.
- Apps
- 29
- Minutes
- 2,355
- Goals
- 8
- Assists
- 7
- Started
- 26/29
- Min / app
- 81
- 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 Hein…
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 APIAsking 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
Dashed ring: the attacker median (50th percentile)
Starts
Share of appearances started rather than entered from the bench.
90% this player59% attacker median94th percentile
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
- €100k
- Jul 2016
- Peak
- €5M
- Dec 2025
- Model target
- €5M
- Jun 2026
- Valuations
- 26
- 5 club changes
Jun 2026: €5M, FC Metz. Dotted lines mark the €2M, €10M and €30M tier boundaries.
Show as a table
| Date | Market value | Club |
|---|---|---|
| 2016-07-13 | €100k | FC Metz |
| 2016-11-01 | €300k | FC Metz |
| 2017-01-16 | €500k | FC Metz |
| 2017-06-01 | €600k | FC Metz |
| 2018-05-16 | €600k | Tours FC |
| 2019-01-08 | €300k | FC Metz |
| 2019-06-27 | €400k | FC Metz |
| 2020-01-06 | €800k | Valenciennes FC |
| 2020-04-08 | €650k | Valenciennes FC |
| 2020-11-11 | €800k | AJ Auxerre |
| 2021-06-25 | €800k | AJ Auxerre |
| 2021-10-27 | €1.2M | AJ Auxerre |
| 2021-12-27 | €1.8M | AJ Auxerre |
| 2022-03-24 | €2M | AJ Auxerre |
| 2022-06-02 | €3M | AJ Auxerre |
| 2022-11-02 | €2.5M | AJ Auxerre |
| 2023-06-27 | €2M | AJ Auxerre |
| 2023-10-27 | €2.5M | AJ Auxerre |
| 2023-12-13 | €2.5M | AJ Auxerre |
| 2024-06-11 | €3M | AJ Auxerre |
| 2024-10-03 | €2.5M | FC Metz |
| 2024-12-04 | €2.5M | FC Metz |
| 2025-03-12 | €3M | FC Metz |
| 2025-06-02 | €4M | FC Metz |
| 2025-12-15 | €5M | FC Metz |
| 2026-06-01 | €5M | FC Metz |
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
- +0.427
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.
See them in the Explorer →Attackers, all leagues1,583 players · median €2.5M
Valued above 64% of the 1,583 attackers.
See them in the Explorer →Where Hein appears
- TerminalLigue 1 in the Player Explorer
- TerminalLigue 1 on the League Landscape
Watchlists and the comparison tray are kept in this browser only.
Near this valuation closest observed values: same league, then same position
- SaïdSSRC Lens · Ligue 1€5M
- ThauvinRWRC Lens · Ligue 1€5M
- NicolaisenCBFC Toulouse · Ligue 1€5M
- LopezDMParis FC · Ligue 1€5M
- WoodCFNottingham Forest · attackers€5M
- PolitanoRWSSC Napoli · attackers€5M
- DybalaSSAS Roma · attackers€5M
- DespodovRWPAOK Thessaloniki · attackers€5M
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).