FairValue

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  • EnvironmentOverviewWhat FairValue measures, what it found, where to go next.
  • EnvironmentTerminalExplore, compare and track players; market, league and model views.
  • EnvironmentStoriesValuations, head-to-heads and research findings, told as stories.
  • TerminalPlayer ExplorerSearch, filter and sort the player export.
  • TerminalComparison StudioTwo to four players on one scale.
  • TerminalWatchlistsNamed collections, kept in this browser.
  • TerminalMarket LandscapeHow observed value is distributed, and where the model drifts.

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Lucas

França

GKBrazil · CD Nacional

№ 418615Emerging €510k +0.16

Player dossierLiga Portugal

LucasFrança

GKGoalkeeperGoalkeeper

Club
CD Nacional
League
Liga Portugal
Nationality
Brazil
Age
30
Height
194 cm
Foot
Right
Valued
28 May 2026

Reading the valuation

The market values França at €600k. Model A, which never saw França during training, estimates €510k: the market value is 18% above that estimate.

That is a factor of ×1.18. 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 €694k, closer to the market here, although it is usually further off (typical miss ×2.07).

A gap describes the model's arithmetic for this player's inputs, not what the player is worth.

▲ +0.16A €510k▼ −0.15B €694k
Pitch length is a log value scale fitted to this player's figures. ● observed · ◇ Model A · dashed ◇ Model B · each arc is a residual, log(observed) − log(estimate).
Apps
40
Minutes
3,555
Started
40/40
Min / app
89
Cards
7Y 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 França…

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 €600k

Checking API
EmergingEstablishedEliteWorld Class€2M€10M€30M€100k€1M€100MMarket €600kModel A €510k

Asking 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 485 goalkeepers

Lucas França's percentiles among goalkeepers: Minutes, two years 63rd, Starts 62nd, Minutes, last 365 days 21st, European club minutes 32nd63rdMinutes62ndStarts21stRecent32ndEurope

Dashed ring: the goalkeeper median (50th percentile)

Minutes, two years

Total club minutes in the two-year window: how much the player was used.

3,555 this player2,790 goalkeeper median63rd percentile

450peer deciles · median line · this player ●9,210

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
May 2016
Peak
€1M
May 2025
Model target
€600k
May 2026
Valuations
16
5 club changes
May 2026€600kCD NacionalValuation the model is trained to reproduce

May 2026: €600k, CD Nacional. Dotted lines mark the €2M, €10M and €30M tier boundaries.

Show as a table
DateMarket valueClub
2016-05-27€100kUnknown
2016-11-28€100kUnknown
2017-12-07€50kCruzeiro Esporte Clube
2018-05-23€50kCruzeiro Esporte Clube
2019-01-11€100kCD Nacional
2019-06-07€100kCD Nacional
2019-11-27€100kCeará Sporting Club
2021-08-12€150kCruzeiro Esporte Clube
2022-12-28€75kCD Nacional
2023-06-28€175kCD Nacional
2023-12-14€375kCD Nacional
2024-06-20€600kCD Nacional
2024-12-19€800kCD Nacional
2025-05-30€1MCD Nacional
2025-12-18€600kCD Nacional
2026-05-28€600kCD Nacional

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
+0.162

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 27% of the 423 Liga Portugal players.

€20k€200k€2M€20M€600kSee them in the Explorer →

Goalkeepers, all leagues485 players · median €1M

Valued above 32% of the 485 goalkeepers.

€20k€200k€2M€20M€600kSee them in the Explorer →

Where França appears

Watchlists and the comparison tray are kept in this browser only.

Near this valuation closest observed values: same league, then same position

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).