Mateja
Stjepanović
DMSerbia · Moreirense FC
Player dossierLiga Portugal
MatejaStjepanović
DMDefensive MidfieldMidfield
- Club
- Moreirense FC
- League
- Liga Portugal
- Nationality
- Serbia
- Age
- 22
- Height
- 185 cm
- Foot
- Right
- Valued
- 28 May 2026
Liga PortugalReading the valuation
The market values Stjepanović at €3M. Model A, which never saw Stjepanović during training, estimates €3M: the market value is 1% above that estimate.
That is a factor of ×1.01. 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 €3M, 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
- 32
- Minutes
- 2,412
- Goals
- 1
- Assists
- 0
- Started
- 29/32
- Min / app
- 75
- 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 Stjepanović…
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 €3M
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)
Starts
Share of appearances started rather than entered from the bench.
91% this player69% midfielder median87th 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
- €3M
- Mar 2026
- Model target
- €3M
- May 2026
- Valuations
- 10
- 2 club changes
May 2026: €3M, Moreirense FC. Dotted lines mark the €2M, €10M and €30M tier boundaries.
Show as a table
| Date | Market value | Club |
|---|---|---|
| 2022-11-18 | €100k | FK Partizan Belgrade U19 |
| 2023-06-22 | €400k | FK Partizan Belgrade U19 |
| 2023-12-27 | €400k | FK Partizan Belgrade |
| 2024-06-10 | €500k | FK Partizan Belgrade |
| 2024-12-27 | €600k | FK Partizan Belgrade |
| 2025-06-12 | €750k | FK Partizan Belgrade |
| 2025-09-30 | €2M | Moreirense FC |
| 2025-12-18 | €2.5M | Moreirense FC |
| 2026-03-19 | €3M | Moreirense FC |
| 2026-05-28 | €3M | Moreirense FC |
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
- +0.014
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 67% of the 423 Liga Portugal players.
See them in the Explorer →Midfielders, all leagues1,687 players · median €2M
Valued above 56% of the 1,687 midfielders.
See them in the Explorer →Where Stjepanović appears
Watchlists and the comparison tray are kept in this browser only.
Near this valuation closest observed values: same league, then same position
- BrumaLWSL Benfica · Liga Portugal€3M
- SantosLBSporting CP · Liga Portugal€3M
- FerreiraDMCD Santa Clara · Liga Portugal€3M
- SánchezRBGD Estoril Praia · Liga Portugal€3M
- MkhitaryanCMInter Milan · midfielders€3M
- GötzeAMEintracht Frankfurt · midfielders€3M
- AndréDMLOSC Lille · midfielders€3M
- ArnoldCMVfL Wolfsburg · midfielders€3M
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).