Christian
Mawissa
CBFrance · AS Monaco
Player dossierLigue 1
ChristianMawissa
CBCentre-BackDefender
- Club
- AS Monaco
- League
- Ligue 1
- Nationality
- France
- Age
- 21
- Height
- 184 cm
- Foot
- Left
- Valued
- 1 Jun 2026
Reading the valuation
The market values Mawissa at €15M. Model A, which never saw Mawissa during training, estimates €14.1M: the market value is 6% above 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 €10.4M, 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.
- Apps
- 49
- Minutes
- 3,102
- Goals
- 0
- Assists
- 0
- Started
- 35/49
- Min / app
- 63
- Cards
- 11Y 1R
Club matches, two years to the valuation date
The Valuation Journey
What moves Model A
Asking the prediction API to explain Model A for Mawissa…
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 €15M
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)
European club minutes
Share of minutes played in UEFA club competitions.
13% this player0% defender median76th 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
- Nov 2022
- Peak
- €15M
- Jun 2025
- Model target
- €15M
- Jun 2026
- Valuations
- 10
- 2 club changes
Jun 2026: €15M, AS Monaco. Dotted lines mark the €2M, €10M and €30M tier boundaries.
Show as a table
| Date | Market value | Club |
|---|---|---|
| 2022-11-02 | €100k | Toulouse FC B |
| 2023-06-27 | €250k | Toulouse FC B |
| 2023-12-18 | €250k | FC Toulouse |
| 2024-03-19 | €7M | FC Toulouse |
| 2024-06-03 | €9M | FC Toulouse |
| 2024-10-07 | €12M | AS Monaco |
| 2024-12-10 | €12M | AS Monaco |
| 2025-06-03 | €15M | AS Monaco |
| 2025-12-15 | €15M | AS Monaco |
| 2026-06-01 | €15M | AS Monaco |
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
- +0.059
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 76% of the 423 Ligue 1 players.
See them in the Explorer →Defenders, all leagues2,065 players · median €2M
Valued above 87% of the 2,065 defenders.
See them in the Explorer →Where Mawissa 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
- HøjbjergDMOlympique Marseille · Ligue 1€15M
- EmboloCFStade Rennais FC · Ligue 1€15M
- NiakhatéCBOlympique Lyon · Ligue 1€15M
- AguerdCBOlympique Marseille · Ligue 1€15M
- DijkCBLiverpool FC · defenders€15M
- ManciniCBAS Roma · defenders€15M
- ChabotCBVfB Stuttgart · defenders€15M
- BoscagliCBBrighton & Hove Albion · defenders€15M
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).