Rui
Costa
CFPortugal · SC Farense
Player dossierLiga Portugal
RuiCosta
CFCentre-ForwardAttack
- Club
- SC Farense
- League
- Liga Portugal
- Nationality
- Portugal
- Age
- 29
- Height
- 179 cm
- Foot
- Right
- Valued
- 22 Dec 2025
Reading the valuation
The market values Costa at €500k. Model A, which never saw Costa during training, estimates €501k: the market value is level with that estimate.
That is a factor of ×1.00. 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 €619k, 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
- 26
- Minutes
- 992
- Goals
- 2
- Assists
- 1
- Started
- 7/26
- Min / app
- 38
- Cards
- 1Y 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 Costa…
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 €500k
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 1,583 attackers
Dashed ring: the attacker median (50th percentile)
European club minutes
Share of minutes played in UEFA club competitions.
14% this player0% attacker 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
- €25k
- Sept 2016
- Peak
- €800k
- Sept 2023
- Model target
- €500k
- Dec 2025
- Valuations
- 22
- 9 club changes
Dec 2025: €500k, SC Farense. Dotted lines mark the €2M, €10M and €30M tier boundaries.
Show as a table
| Date | Market value | Club |
|---|---|---|
| 2016-09-30 | €25k | Varzim SC |
| 2017-06-30 | €600k | Varzim SC |
| 2017-09-08 | €350k | FC Famalicão |
| 2018-02-07 | €750k | Portimonense SAD |
| 2018-06-13 | €750k | Portimonense SAD |
| 2019-02-12 | €550k | FC Porto B |
| 2019-06-29 | €500k | FC Porto B |
| 2019-12-20 | €500k | AD Alcorcón |
| 2020-04-08 | €400k | AD Alcorcón |
| 2020-10-08 | €400k | Deportivo de La Coruña |
| 2021-01-07 | €400k | Deportivo de La Coruña |
| 2021-05-21 | €500k | CD Santa Clara |
| 2021-12-27 | €600k | CD Santa Clara |
| 2022-05-31 | €600k | CD Santa Clara |
| 2022-12-28 | €550k | SC Farense |
| 2023-06-28 | €550k | SC Farense |
| 2023-09-29 | €800k | SC Farense |
| 2023-12-27 | €700k | SC Farense |
| 2024-06-06 | €500k | SC Farense |
| 2024-11-14 | €550k | Tobol Kostanay |
| 2025-05-30 | €600k | SC Farense |
| 2025-12-22 | €500k | SC Farense |
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
- −0.003
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 20% of the 423 Liga Portugal players.
See them in the Explorer →Attackers, all leagues1,583 players · median €2.5M
Valued above 15% of the 1,583 attackers.
See them in the Explorer →Where Costa appears
Watchlists and the comparison tray are kept in this browser only.
Near this valuation closest observed values: same league, then same position
- SilvaCBFC Porto · Liga Portugal€500k
- MoutinhoCMSC Braga · Liga Portugal€500k
- JongCFFC Porto · Liga Portugal€500k
- PérezDMCasa Pia AC · Liga Portugal€500k
- ZuberLWAtromitos Athens · attackers€500k
- VerbicLWLevadiakos · attackers€500k
- KodroCFReal Zaragoza · attackers€500k
- PetagnaCFAC Monza · attackers€500k
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).