Jérémy
Petris
Player dossierPremier League
JérémyPetris
RBRight-BackDefender
- Club
- Watford FC
- League
- Premier League
- Nationality
- Martinique
- Age
- 27
- Height
- 183 cm
- Foot
- Right
- Valued
- 3 Dec 2025
Premier LeagueReading the valuation
The market values Petris at €2M. Model A, which never saw Petris during training, estimates €2.1M: the market value is 6% below that estimate.
That is a factor of ×1.06. 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 €1.6M, 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
- 41
- Minutes
- 3,514
- Goals
- 0
- Assists
- 3
- Started
- 39/41
- Min / app
- 86
- Cards
- 10Y 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 Petris…
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 €2M
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 2,065 defenders
Dashed ring: the defender median (50th percentile)
Starts
Share of appearances started rather than entered from the bench.
95% this player83% defender median84th 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
- €75k
- Feb 2018
- Peak
- €2.8M
- Jun 2025
- Model target
- €2M
- Dec 2025
- Valuations
- 21
- 8 club changes
Dec 2025: €2M, Watford FC. Dotted lines mark the €2M, €10M and €30M tier boundaries.
Show as a table
| Date | Market value | Club |
|---|---|---|
| 2018-02-01 | €75k | ASDC Gozzano |
| 2018-06-22 | €100k | ASDC Gozzano |
| 2018-12-13 | €150k | AC Gozzano |
| 2019-06-19 | €175k | AC Gozzano |
| 2019-12-30 | €150k | FC Crotone |
| 2021-01-11 | €150k | FC Pro Vercelli 1892 |
| 2021-06-21 | €125k | FC Pro Vercelli 1892 |
| 2021-11-17 | €75k | FC Crotone |
| 2022-05-31 | €150k | Tsarsko Selo (-2022) |
| 2022-09-07 | €300k | Levski Sofia |
| 2022-11-28 | €400k | Levski Sofia |
| 2023-06-05 | €800k | Levski Sofia |
| 2023-09-15 | €1M | Levski Sofia |
| 2023-12-20 | €800k | Levski Sofia |
| 2024-03-22 | €1M | Royal Charleroi SC |
| 2024-06-04 | €1.2M | Royal Charleroi SC |
| 2024-10-02 | €1.5M | Royal Charleroi SC |
| 2024-12-11 | €2M | Royal Charleroi SC |
| 2025-06-12 | €2.8M | Royal Charleroi SC |
| 2025-10-06 | €2.2M | Watford FC |
| 2025-12-03 | €2M | Watford FC |
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
- −0.060
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 9% of the 555 Premier League players.
See them in the Explorer →Defenders, all leagues2,065 players · median €2M
Valued above 49% of the 2,065 defenders.
See them in the Explorer →Where Petris appears
Watchlists and the comparison tray are kept in this browser only.
Near this valuation closest observed values: same league, then same position
- JohnstoneGKWolverhampton Wanderers · Premier League€2M
- LundstramDMHull City · Premier League€2M
- SchluppLMNorwich City · Premier League€2M
- LascellesCBNewcastle United · Premier League€2M
- HummelsCBAS Roma · defenders€2M
- GünterLBSC Freiburg · defenders€2M
- KohrCB1.FSV Mainz 05 · defenders€2M
- KayembeLBKRC Genk · defenders€2M
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).