Christopher
Operi
LBCote d'Ivoire · Basaksehir FK
Player dossierSüper Lig
ChristopherOperi
LBLeft-BackDefender
- Club
- Basaksehir FK
- League
- Süper Lig
- Nationality
- Cote d'Ivoire
- Age
- 29
- Height
- 183 cm
- Foot
- Left
- Valued
- 21 May 2026
Süper LigReading the valuation
The market values Operi at €4M. Model A, which never saw Operi during training, estimates €3.8M: the market value is 5% above that estimate.
That is a factor of ×1.05. 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 €2.1M, 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
- 52
- Minutes
- 4,436
- Goals
- 3
- Assists
- 8
- Started
- 51/52
- Min / app
- 85
- Cards
- 7Y 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 Operi…
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 €4M
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.
98% this player83% defender median92nd 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
- €150k
- May 2018
- Peak
- €4M
- Jun 2024
- Model target
- €4M
- May 2026
- Valuations
- 21
- 3 club changes
May 2026: €4M, Basaksehir FK. Dotted lines mark the €2M, €10M and €30M tier boundaries.
Show as a table
| Date | Market value | Club |
|---|---|---|
| 2018-05-16 | €150k | LB Châteauroux |
| 2019-01-08 | €400k | LB Châteauroux |
| 2019-06-27 | €400k | LB Châteauroux |
| 2020-01-06 | €1M | LB Châteauroux |
| 2020-04-08 | €800k | LB Châteauroux |
| 2020-11-11 | €800k | LB Châteauroux |
| 2021-06-25 | €600k | LB Châteauroux |
| 2022-01-06 | €600k | KAA Gent |
| 2022-04-12 | €500k | KAA Gent |
| 2022-10-28 | €900k | Le Havre AC |
| 2023-04-06 | €1.5M | Le Havre AC |
| 2023-06-16 | €2M | Le Havre AC |
| 2023-12-18 | €2M | Le Havre AC |
| 2024-03-19 | €2.5M | Le Havre AC |
| 2024-06-03 | €4M | Le Havre AC |
| 2024-12-10 | €4M | Le Havre AC |
| 2025-03-20 | €4M | Basaksehir FK |
| 2025-06-18 | €3.8M | Basaksehir FK |
| 2025-10-01 | €4M | Basaksehir FK |
| 2025-12-17 | €4M | Basaksehir FK |
| 2026-05-21 | €4M | Basaksehir FK |
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
- +0.049
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 →Süper Lig428 players · median €1.2M
Valued above 77% of the 428 Süper Lig players.
See them in the Explorer →Defenders, all leagues2,065 players · median €2M
Valued above 65% of the 2,065 defenders.
See them in the Explorer →Where Operi appears
Watchlists and the comparison tray are kept in this browser only.
Near this valuation closest observed values: same league, then same position
- IcardiCFGalatasaray · Süper Lig€4M
- KantéDMFenerbahce · Süper Lig€4M
- ChalovCFKayserispor · Süper Lig€4M
- ÜnderRWBesiktas JK · Süper Lig€4M
- KolasinacCBAtalanta BC · defenders€4M
- TagliaficoLBOlympique Lyon · defenders€4M
- BurnCBNewcastle United · defenders€4M
- SchärCBNewcastle United · defenders€4M
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).