José
Gomes
LBPortugal · CD Nacional
Player dossierLiga Portugal
JoséGomes
LBLeft-BackDefender
- Club
- CD Nacional
- League
- Liga Portugal
- Nationality
- Portugal
- Age
- 29
- Height
- 185 cm
- Foot
- Left
- Valued
- 28 May 2026
Reading the valuation
The market values Gomes at €1M. Model A, which never saw Gomes during training, estimates €1.1M: the market value is 9% below that estimate.
That is a factor of ×1.10. 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 €1.4M, 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
- 56
- Minutes
- 4,753
- Goals
- 4
- Assists
- 6
- Started
- 54/56
- Min / app
- 85
- 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 Gomes…
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 €1M
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.
96% this player83% defender median88th 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
- €50k
- Jul 2015
- Peak
- €1M
- May 2025
- Model target
- €1M
- May 2026
- Valuations
- 23
- 3 club changes
May 2026: €1M, CD Nacional. Dotted lines mark the €2M, €10M and €30M tier boundaries.
Show as a table
| Date | Market value | Club |
|---|---|---|
| 2015-07-31 | €50k | SC Braga B |
| 2016-03-14 | €50k | SC Braga B |
| 2016-09-30 | €50k | SC Braga B |
| 2017-06-30 | €50k | SC Braga B |
| 2017-09-08 | €200k | FC Penafiel |
| 2018-02-23 | €250k | FC Penafiel |
| 2018-06-29 | €450k | FC Penafiel |
| 2019-02-12 | €350k | FC Penafiel |
| 2019-06-29 | €275k | FC Penafiel |
| 2019-12-31 | €375k | GD Chaves |
| 2020-04-08 | €325k | GD Chaves |
| 2020-11-02 | €325k | GD Chaves |
| 2021-06-29 | €200k | GD Chaves |
| 2022-04-01 | €150k | CD Nacional |
| 2022-06-27 | €175k | CD Nacional |
| 2022-12-28 | €375k | CD Nacional |
| 2023-06-28 | €325k | CD Nacional |
| 2023-12-14 | €225k | CD Nacional |
| 2024-06-20 | €350k | CD Nacional |
| 2024-12-19 | €600k | CD Nacional |
| 2025-05-30 | €1M | CD Nacional |
| 2025-12-18 | €1M | CD Nacional |
| 2026-05-28 | €1M | CD Nacional |
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
- −0.094
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 42% of the 423 Liga Portugal players.
See them in the Explorer →Defenders, all leagues2,065 players · median €2M
Valued above 35% of the 2,065 defenders.
See them in the Explorer →Where Gomes appears
Watchlists and the comparison tray are kept in this browser only.
Near this valuation closest observed values: same league, then same position
- OtamendiCBSL Benfica · Liga Portugal€1M
- SoaresLBFC Famalicão · Liga Portugal€1M
- ZlobinGKFC Famalicão · Liga Portugal€1M
- FerroCBGD Estoril Praia · Liga Portugal€1M
- AzpilicuetaCBSevilla FC · defenders€1M
- KaravaevRBDynamo Kyiv · defenders€1M
- BerchicheLBAthletic Bilbao · defenders€1M
- MandiCBLOSC Lille · defenders€1M
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).