Eduardo
Quaresma
CBPortugal · Sporting CP
Image: FootyLogos
Player dossierLiga Portugal
EduardoQuaresma
CBCentre-BackDefender
- Club
- Sporting CP
- League
- Liga Portugal
- Nationality
- Portugal
- Age
- 24
- Height
- 185 cm
- Foot
- Right
- Valued
- 28 May 2026
Reading the valuation
The market values Quaresma at €17M. Model A, which never saw Quaresma during training, estimates €12.2M: the market value is 39% above that estimate.
That is a factor of ×1.39. 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 €6.5M, 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
- 53
- Minutes
- 3,584
- Goals
- 3
- Assists
- 2
- Started
- 42/53
- Min / app
- 68
- Cards
- 6Y 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 Quaresma…
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 €17M
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.
18% this player0% defender median82nd 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
- €7M
- Aug 2020
- Peak
- €18M
- May 2025
- Model target
- €17M
- May 2026
- Valuations
- 17
- 3 club changes
May 2026: €17M, Sporting CP. Dotted lines mark the €2M, €10M and €30M tier boundaries.
Show as a table
| Date | Market value | Club |
|---|---|---|
| 2020-08-17 | €7M | Sporting CP |
| 2021-01-28 | €6M | Sporting CP |
| 2021-05-21 | €5M | Sporting CP |
| 2021-12-27 | €4M | CD Tondela |
| 2022-05-31 | €4M | CD Tondela |
| 2022-11-09 | €4M | TSG 1899 Hoffenheim |
| 2023-03-29 | €3M | TSG 1899 Hoffenheim |
| 2023-06-22 | €2.5M | TSG 1899 Hoffenheim |
| 2023-12-27 | €2.5M | Sporting CP |
| 2024-03-08 | €7M | Sporting CP |
| 2024-06-06 | €8M | Sporting CP |
| 2024-10-08 | €14M | Sporting CP |
| 2024-12-19 | €14M | Sporting CP |
| 2025-05-30 | €18M | Sporting CP |
| 2025-09-30 | €17M | Sporting CP |
| 2025-12-18 | €15M | Sporting CP |
| 2026-05-28 | €17M | Sporting CP |
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
- +0.329
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 →Liga Portugal423 players · median €1M
Valued above 92% of the 423 Liga Portugal players.
See them in the Explorer →Defenders, all leagues2,065 players · median €2M
Valued above 89% of the 2,065 defenders.
See them in the Explorer →Where Quaresma appears
Watchlists and the comparison tray are kept in this browser only.
Near this valuation closest observed values: same league, then same position
- PepêRWFC Porto · Liga Portugal€17M
- BarreiroCMSL Benfica · Liga Portugal€18M
- HornicekGKSC Braga · Liga Portugal€18M
- CostaRBFC Porto · Liga Portugal€18M
- AkanjiCBInter Milan · defenders€17M
- TomoriCBAC Milan · defenders€17M
- GabbiaCBAC Milan · defenders€17M
- TheateCBEintracht Frankfurt · defenders€17M
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).