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…

Portrait of Luis Suárez

Luis

Suárez

CFColombia · Sporting CP

№ 424784World Class €34M −0.13

Photo: Bryan Berlin / WikiPortraits, CC BY-SA 4.0 (background removed)

Player dossierLiga Portugal

LuisSuárez

CFCentre-ForwardAttack

Club
Sporting CP
League
Liga Portugal
Nationality
Colombia
Age
28
Height
179 cm
Foot
Right
Valued
28 May 2026

Reading the valuation

The market values Suárez at €30M. Model A, which never saw Suárez during training, estimates €34M: the market value is 12% below that estimate.

That is a factor of ×1.13. 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 €24M, 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.

▼ −0.13A €34M▲ +0.22B €24M
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
46
Minutes
3,767
Goals
34
Assists
9
Started
42/46
Min / app
82
Cards
10Y 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 Suárez…

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 €30M

Checking API
EmergingEstablishedEliteWorld Class€2M€10M€30M€100k€1M€100MMarket €30MModel A €34M

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

Luis Suárez's percentiles among attackers: Goals per 90 99th, Assists per 90 74th, Minutes, two years 78th, Starts 95th, Minutes, last 365 days 99th, European club minutes 90th99thGoals74thAssists78thMinutes95thStarts99thRecent90thEurope

Dashed ring: the attacker median (50th percentile)

Goals per 90

Club goals per 90 minutes played in the two years to the valuation date.

0.81 this player0.26 attacker median99th percentile

0.00peer deciles · median line · this player ●1.17

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
Aug 2016
Peak
€30M
May 2026
Model target
€30M
May 2026
Valuations
29
8 club changes
May 2026€30MSporting CPValuation the model is trained to reproduce

May 2026: €30M, Sporting CP. Dotted lines mark the €2M, €10M and €30M tier boundaries.

Show as a table
DateMarket valueClub
2016-08-01€50kGranada CF B
2016-10-27€150kGranada CF B
2017-02-02€150kGranada CF B
2017-06-30€150kLeones FC
2018-01-01€250kReal Valladolid B
2018-05-30€300kReal Valladolid B
2019-02-19€500kGimnàstic de Tarragona
2019-06-29€800kGimnàstic de Tarragona
2019-09-10€1MReal Zaragoza
2019-12-20€4.5MReal Zaragoza
2020-04-08€3.5MReal Zaragoza
2020-07-23€7.5MReal Zaragoza
2020-10-08€10MGranada CF
2021-01-05€10MGranada CF
2021-06-10€10MGranada CF
2021-12-30€10MGranada CF
2022-06-03€9MGranada CF
2022-11-02€9MOlympique Marseille
2023-06-13€8MUD Almería
2023-12-22€8MUD Almería
2024-03-21€5MUD Almería
2024-06-07€3.5MUD Almería
2024-12-13€5MUD Almería
2025-03-27€6MUD Almería
2025-06-24€8MUD Almería
2025-09-30€22MSporting CP
2025-12-18€22MSporting CP
2026-03-19€28MSporting CP
2026-05-28€30MSporting 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
−0.126

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 96% of the 423 Liga Portugal players.

€20k€200k€2M€20M€30MSee them in the Explorer →

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

Valued above 92% of the 1,583 attackers.

€20k€300k€5M€75M€30MSee them in the Explorer →

Where Suárez 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).