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…

Nazım

Sangaré

RBTürkiye · Gaziantep FK

№ 157113Emerging €428k −0.76

Player dossierSüper Lig

NazımSangaré

RBRight-BackDefender

Club
Gaziantep FK
League
Süper Lig
Nationality
Türkiye
Age
31
Height
185 cm
Foot
Right
Valued
21 May 2026

Reading the valuation

The market values Sangaré at €200k. Model A, which never saw Sangaré during training, estimates €428k: the market value is 53% below that estimate.

That is a factor of ×2.14. 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 €550k, 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.

▼ −0.76A €428k▼ −1.01B €550k
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
36
Minutes
1,988
Goals
0
Assists
1
Started
21/36
Min / app
55
Cards
8Y 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 Sangaré…

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 €200k

Checking API
EmergingEstablishedEliteWorld Class€2M€10M€30M€100k€1M€100MMarket €200kModel A €428k

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

Nazım Sangaré's percentiles among defenders: Goals per 90 18th, Assists per 90 54th, Minutes, two years 33rd, Starts 14th, Minutes, last 365 days 33rd, European club minutes 30th18thGoals54thAssists33rdMinutes14thStarts33rdRecent30thEurope

Dashed ring: the defender median (50th percentile)

Assists per 90

Club assists per 90 minutes in the same window.

0.05 this player0.04 defender median54th percentile

0.00peer deciles · median line · this player ●0.58

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
Jul 2013
Peak
€2.7M
Mar 2021
Model target
€200k
May 2026
Valuations
39
8 club changes
May 2026€200kGaziantep FKValuation the model is trained to reproduce

May 2026: €200k, Gaziantep FK. Dotted lines mark the €2M, €10M and €30M tier boundaries.

Show as a table
DateMarket valueClub
2013-07-22€50kBorussia Mönchengladbach II
2013-08-26€100kAlemannia Aachen
2014-03-28€75kAlemannia Aachen
2014-05-08€100kAlemannia Aachen
2014-07-27€75kFortuna Düsseldorf II
2015-01-01€50kFortuna Düsseldorf II
2015-06-30€50kFortuna Düsseldorf II
2016-01-15€150kFortuna Düsseldorf II
2016-07-14€175kVfL Osnabrück
2017-02-10€225kVfL Osnabrück
2017-06-14€275kVfL Osnabrück
2018-02-12€400kAntalyaspor
2018-05-29€600kAntalyaspor
2019-01-04€900kAntalyaspor
2019-06-04€1.5MAntalyaspor
2020-01-03€2MAntalyaspor
2020-04-08€1.6MAntalyaspor
2020-08-04€1.8MAntalyaspor
2020-12-23€1.8MFenerbahce
2021-03-16€2.7MFenerbahce
2021-05-21€2.5MFenerbahce
2021-10-12€2.4MFenerbahce
2022-01-04€2MFenerbahce
2022-03-31€1.7MFenerbahce
2022-06-01€1.7MFenerbahce
2022-10-27€1.1MFenerbahce
2023-03-14€750kFenerbahce
2023-06-08€500kFenerbahce
2023-09-27€250kFatih Karagümrük
2023-12-21€300kFatih Karagümrük
2024-03-15€300kFatih Karagümrük
2024-05-31€300kFatih Karagümrük
2024-10-04€450kGöztepe
2024-12-23€400kGöztepe
2025-03-20€375kGöztepe
2025-06-18€350kGöztepe
2025-10-01€300kGaziantep FK
2025-12-17€200kGaziantep FK
2026-05-21€200kGaziantep FK

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
−0.760

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 →

Süper Lig428 players · median €1.2M

Valued above 6% of the 428 Süper Lig players.

€50k€300k€2M€15M€200kSee them in the Explorer →

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

Valued above 5% of the 2,065 defenders.

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

Where Sangaré 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).