FairValue

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  • EnvironmentOverviewWhat FairValue measures, what it found, where to go next.
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Eray

Cömert

CBSwitzerland · Valencia CF

№ 298583Established €5.3M −0.75

Player dossierLaLiga

ErayCömert

CBCentre-BackDefender

Club
Valencia CF
League
LaLiga
Nationality
Switzerland
Age
28
Height
183 cm
Foot
Right
Valued
5 Jun 2026

Reading the valuation

The market values Cömert at €2.5M. Model A, which never saw Cömert during training, estimates €5.3M: the market value is 53% below that estimate.

That is a factor of ×2.12. 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 €2.9M, 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.

▼ −0.75A €5.3M▼ −0.14B €2.9M
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
49
Minutes
3,690
Goals
2
Assists
1
Started
41/49
Min / app
75
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 Cömert…

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 €2.5M

Checking API
EmergingEstablishedEliteWorld Class€2M€10M€30M€100k€1M€100MMarket €2.5MModel A €5.3M

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 2,065 defenders

Eray Cömert's percentiles among defenders: Goals per 90 63rd, Assists per 90 40th, Minutes, two years 65th, Starts 53rd, Minutes, last 365 days 52nd, European club minutes 30th63rdGoals40thAssists65thMinutes53rdStarts52ndRecent30thEurope

Dashed ring: the defender median (50th percentile)

Minutes, two years

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

3,690 this player2,860 defender median65th percentile

451peer deciles · median line · this player ●9,111

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
Jul 2016
Peak
€4M
Nov 2022
Model target
€2.5M
Jun 2026
Valuations
30
7 club changes
Jun 2026€2.5MValencia CFValuation the model is trained to reproduce

Jun 2026: €2.5M, Valencia CF. Dotted lines mark the €2M, €10M and €30M tier boundaries.

Show as a table
DateMarket valueClub
2016-07-16€100kFC Basel 1893
2016-12-20€100kFC Basel 1893
2017-04-14€250kFC Lugano
2017-07-12€500kFC Sion
2018-01-08€500kFC Sion
2018-04-24€900kFC Sion
2018-07-12€1.3MFC Basel 1893
2019-01-21€1.5MFC Basel 1893
2019-04-15€1.5MFC Basel 1893
2019-06-04€2MFC Basel 1893
2020-01-06€2.5MFC Basel 1893
2020-04-08€2.3MFC Basel 1893
2020-07-31€2.3MFC Basel 1893
2020-12-28€2.3MFC Basel 1893
2021-04-15€2MFC Basel 1893
2021-05-25€2MFC Basel 1893
2021-06-23€2MFC Basel 1893
2022-01-03€1.8MFC Basel 1893
2022-06-03€1.5MValencia CF
2022-09-23€2MValencia CF
2022-11-07€4MValencia CF
2023-06-13€3.5MValencia CF
2023-12-18€4MFC Nantes
2024-06-03€4MFC Nantes
2024-12-27€3MReal Valladolid CF
2025-03-21€2.5MReal Valladolid CF
2025-06-09€2MReal Valladolid CF
2025-12-12€2MValencia CF
2026-03-16€2.5MValencia CF
2026-06-05€2.5MValencia CF

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
−0.752

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 →

LaLiga509 players · median €4M

Valued above 34% of the 509 LaLiga players.

€100k€1M€10M€100M€2.5MSee them in the Explorer →

Defenders, all leagues2,065 players · median €2M

Valued above 54% of the 2,065 defenders.

€20k€200k€2M€20M€2.5MSee them in the Explorer →

Where Cömert 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).