Luís
Guilherme
RWBrazil · Sporting CP
Image: FootyLogos
Player dossierLiga Portugal
LuísGuilherme
RWRight WingerAttack
- Club
- Sporting CP
- League
- Liga Portugal
- Nationality
- Brazil
- Age
- 20
- Height
- 175 cm
- Foot
- Left
- Valued
- 28 May 2026
Liga PortugalReading the valuation
The market values Guilherme at €12M. Model A, which never saw Guilherme during training, estimates €7.5M: the market value is 61% above that estimate.
That is a factor of ×1.61. 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 €4.7M, 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
- 33
- Minutes
- 980
- Goals
- 1
- Assists
- 0
- Started
- 10/33
- Min / app
- 30
- Cards
- 0Y 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 Guilherme…
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 €12M
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.
8% this player0% attacker median68th 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
- €1.5M
- Feb 2023
- Peak
- €24M
- Jun 2024
- Model target
- €12M
- May 2026
- Valuations
- 13
- 2 club changes
May 2026: €12M, Sporting CP. Dotted lines mark the €2M, €10M and €30M tier boundaries.
Show as a table
| Date | Market value | Club |
|---|---|---|
| 2023-02-17 | €1.5M | Sociedade Esportiva Palmeiras |
| 2023-04-07 | €3M | Sociedade Esportiva Palmeiras |
| 2023-07-25 | €7M | Sociedade Esportiva Palmeiras |
| 2023-12-11 | €17M | Sociedade Esportiva Palmeiras |
| 2024-03-28 | €17M | Sociedade Esportiva Palmeiras |
| 2024-06-17 | €24M | Sociedade Esportiva Palmeiras |
| 2024-12-16 | €22M | West Ham United |
| 2025-03-18 | €18M | West Ham United |
| 2025-05-30 | €15M | West Ham United |
| 2025-10-17 | €12M | West Ham United |
| 2025-12-09 | €10M | West Ham United |
| 2026-03-19 | €12M | Sporting CP |
| 2026-05-28 | €12M | Sporting CP |
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
- +0.475
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 88% of the 423 Liga Portugal players.
See them in the Explorer →Attackers, all leagues1,583 players · median €2.5M
Valued above 79% of the 1,583 attackers.
See them in the Explorer →Where Guilherme appears
Watchlists and the comparison tray are kept in this browser only.
Near this valuation closest observed values: same league, then same position
- BragançaCMSporting CP · Liga Portugal€12M
- PérezCBFC Porto · Liga Portugal€12M
- BegraouiCFGD Estoril Praia · Liga Portugal€12M
- BarrenecheaDMSL Benfica · Liga Portugal€12M
- MurphyRWNewcastle United · attackers€12M
- FührichLWVfB Stuttgart · attackers€12M
- BrooksRWAFC Bournemouth · attackers€12M
- GudmundssonSSACF Fiorentina · attackers€12M
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).