Christos
Mouzakitis
CMGreece · Olympiacos Piraeus
Image: FootyLogos
Player dossierSuper League
ChristosMouzakitis
CMCentral MidfieldMidfield
- Club
- Olympiacos Piraeus
- League
- Super League
- Nationality
- Greece
- Age
- 19
- Height
- 180 cm
- Foot
- Left
- Valued
- 4 Jun 2026
Reading the valuation
The market values Mouzakitis at €25M. Model A, which never saw Mouzakitis during training, estimates €14.5M: the market value is 73% above that estimate.
That is a factor of ×1.73. 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 €12.8M, 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
- 65
- Minutes
- 3,926
- Goals
- 3
- Assists
- 6
- Started
- 41/65
- Min / app
- 60
- Cards
- 4Y 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 Mouzakitis…
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 €25M
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 1,687 midfielders
Dashed ring: the midfielder median (50th percentile)
European club minutes
Share of minutes played in UEFA club competitions.
34% this player0% midfielder median98th 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
- Jun 2023
- Peak
- €25M
- Dec 2025
- Model target
- €25M
- Jun 2026
- Valuations
- 11
- 2 club changes
Jun 2026: €25M, Olympiacos Piraeus. Dotted lines mark the €2M, €10M and €30M tier boundaries.
Show as a table
| Date | Market value | Club |
|---|---|---|
| 2023-06-19 | €75k | Olympiacos Piraeus U19 |
| 2023-12-28 | €125k | Olympiacos Piraeus B |
| 2024-03-13 | €150k | Olympiacos Piraeus B |
| 2024-05-23 | €250k | Olympiacos Piraeus B |
| 2024-09-26 | €450k | Olympiacos Piraeus |
| 2024-12-18 | €3M | Olympiacos Piraeus |
| 2025-03-14 | €7.5M | Olympiacos Piraeus |
| 2025-05-23 | €12M | Olympiacos Piraeus |
| 2025-09-23 | €15M | Olympiacos Piraeus |
| 2025-12-12 | €25M | Olympiacos Piraeus |
| 2026-06-04 | €25M | Olympiacos Piraeus |
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
- +0.546
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 →Super League356 players · median €600k
The highest observed value among 356 Super League players.
See them in the Explorer →Midfielders, all leagues1,687 players · median €2M
Valued above 91% of the 1,687 midfielders.
See them in the Explorer →Where Mouzakitis appears
Watchlists and the comparison tray are kept in this browser only.
Near this valuation closest observed values: same league, then same position
- KonstanteliasAMPAOK Thessaloniki · Super League€22M
- TzolakisGKOlympiacos Piraeus · Super League€18M
- HezzeDMOlympiacos Piraeus · Super League€14M
- PirolaCBOlympiacos Piraeus · Super League€11M
- LocatelliDMJuventus FC · midfielders€25M
- KluivertAMAFC Bournemouth · midfielders€25M
- AdamsDMAFC Bournemouth · midfielders€25M
- BergeDMFulham FC · midfielders€25M
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).