FairValue

Checking model

Esc

  • 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.

↑ ↓ to move · Enter to open · Esc to closeLoading player index…

Ángelo

Sagal

LWChile · AE Larisa

№ 190941Emerging €232k +0.41

Player dossierSuper League

ÁngeloSagal

LWLeft WingerAttack

Club
AE Larisa
League
Super League
Nationality
Chile
Age
33
Height
182 cm
Foot
Left
Valued
4 Jun 2026

Reading the valuation

The market values Sagal at €350k. Model A, which never saw Sagal during training, estimates €232k: the market value is 51% above that estimate.

That is a factor of ×1.51. 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 €294k, 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.

▲ +0.41A €232k▲ +0.17B €294k
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
22
Minutes
1,358
Goals
5
Assists
0
Started
15/22
Min / app
62
Cards
5Y 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 Sagal…

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 €350k

Checking API
EmergingEstablishedEliteWorld Class€2M€10M€30M€100k€1M€100MMarket €350kModel A €232k

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 1,583 attackers

Ángelo Sagal's percentiles among attackers: Goals per 90 63rd, Assists per 90 6th, Minutes, two years 28th, Starts 65th, Minutes, last 365 days 53rd, European club minutes 28th63rdGoals6thAssists28thMinutes65thStarts53rdRecent28thEurope

Dashed ring: the attacker median (50th percentile)

Starts

Share of appearances started rather than entered from the bench.

68% this player59% attacker median65th percentile

5%peer deciles · median line · this player ●100%

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
€500k
Jan 2016
Peak
€2.3M
Apr 2018
Model target
€350k
Jun 2026
Valuations
27
7 club changes
Jun 2026€350kAE LarisaValuation the model is trained to reproduce

Jun 2026: €350k, AE Larisa. Dotted lines mark the €2M, €10M and €30M tier boundaries.

Show as a table
DateMarket valueClub
2016-01-11€500kHuachipato FC
2017-07-31€1.5MCF Pachuca
2018-04-10€2.3MCF Pachuca
2018-08-23€2.3MCF Pachuca
2019-02-08€2.3MCF Pachuca
2019-08-13€2MFC Juárez
2020-01-10€2MFC Juárez
2020-04-08€1.6MFC Juárez
2020-06-27€1.6MFC Juárez
2020-12-23€1.6MDenizlispor
2021-03-16€1.5MDenizlispor
2021-05-21€1.3MDenizlispor
2021-10-12€1.3MGaziantep FK
2022-01-04€1.3MGaziantep FK
2022-03-31€1.7MGaziantep FK
2022-06-01€1.5MGaziantep FK
2022-10-27€1.3MGaziantep FK
2023-03-14€1MFerencvárosi TC
2023-06-07€900kFerencvárosi TC
2023-09-29€700kApollon Limassol
2023-12-28€650kApollon Limassol
2024-05-17€650kApollon Limassol
2024-09-24€600kApollon Limassol
2024-12-09€550kApollon Limassol
2025-05-29€450kApollon Limassol
2025-12-12€400kAE Larisa
2026-06-04€350kAE Larisa

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
+0.411

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 →

Super League356 players · median €600k

Valued above 25% of the 356 Super League players.

€20k€150k€1M€7.5M€350kSee them in the Explorer →

Attackers, all leagues1,583 players · median €2.5M

Valued above 10% of the 1,583 attackers.

€20k€300k€5M€75M€350kSee them in the Explorer →

Where Sagal 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).