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…

Daler

Kuzyaev

CMRussia · Rubin Kazan

№ 279570Established €417k +1.97

Player dossierPremier Liga

DalerKuzyaev

CMCentral MidfieldMidfield

Club
Rubin Kazan
League
Premier Liga
Nationality
Russia
Age
33
Height
182 cm
Foot
Right
Valued
26 May 2026

Reading the valuation

The market values Kuzyaev at €3M. Model A, which never saw Kuzyaev during training, estimates €417k: the market value is 619% above that estimate.

That is a factor of ×7.19. 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 €461k, 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.

▲ +1.97A €417k▲ +1.87B €461k
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
31
Minutes
1,724
Goals
1
Assists
0
Started
19/31
Min / app
56
Cards
4Y 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 Kuzyaev…

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 €3M

Checking API
EmergingEstablishedEliteWorld Class€2M€10M€30M€100k€1M€100MMarket €3MModel A €417k

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 1,687 midfielders

Daler Kuzyaev's percentiles among midfielders: Goals per 90 35th, Assists per 90 8th, Minutes, two years 30th, Starts 36th, Minutes, last 365 days 37th, European club minutes 30th35thGoals8thAssists30thMinutes36thStarts37thRecent30thEurope

Dashed ring: the midfielder median (50th percentile)

Minutes, last 365 days

Club minutes in the final year of the window: recent involvement, or the absence of it.

1,160 this player1,541 midfielder median37th percentile

0peer deciles · median line · this player ●4,800

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
Sept 2013
Peak
€11M
Dec 2018
Model target
€3M
May 2026
Valuations
32
4 club changes
May 2026€3MRubin KazanValuation the model is trained to reproduce

May 2026: €3M, Rubin Kazan. Dotted lines mark the €2M, €10M and €30M tier boundaries.

Show as a table
DateMarket valueClub
2013-09-13€50kNeftekhimik Nizhnekamsk
2013-12-27€100kNeftekhimik Nizhnekamsk
2014-07-31€100kTerek Grozny
2015-02-23€350kTerek Grozny
2015-06-18€650kTerek Grozny
2016-01-06€800kTerek Grozny
2016-05-25€1MTerek Grozny
2016-12-27€1.5MTerek Grozny
2017-06-01€2.5MTerek Grozny
2017-10-02€4MZenit St. Petersburg
2017-12-23€5.5MZenit St. Petersburg
2018-06-06€7MZenit St. Petersburg
2018-07-15€8MZenit St. Petersburg
2018-12-20€11MZenit St. Petersburg
2019-06-14€11MZenit St. Petersburg
2019-12-23€10MZenit St. Petersburg
2020-04-08€8MZenit St. Petersburg
2020-07-29€8MZenit St. Petersburg
2020-12-29€7MZenit St. Petersburg
2021-05-26€8MZenit St. Petersburg
2021-12-29€9MZenit St. Petersburg
2022-06-02€9MZenit St. Petersburg
2022-11-21€10MZenit St. Petersburg
2023-06-14€10MZenit St. Petersburg
2023-12-18€10MLe Havre AC
2024-03-19€9MLe Havre AC
2024-06-03€8MLe Havre AC
2024-12-10€6MLe Havre AC
2025-03-24€5MLe Havre AC
2025-06-03€3.5MLe Havre AC
2025-12-16€3.5MRubin Kazan
2026-05-26€3MRubin Kazan

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
+1.972

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 →

Premier Liga412 players · median €1M

Valued above 77% of the 412 Premier Liga players.

€50k€300k€2M€15M€3MSee them in the Explorer →

Midfielders, all leagues1,687 players · median €2M

Valued above 56% of the 1,687 midfielders.

€20k€200k€2M€20M€3MSee them in the Explorer →

Where Kuzyaev 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).