FairValue

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Gökhan

Sazdağı

RBTürkiye · Besiktas JK

№ 257785Emerging €1.2M −0.01

Player dossierSüper Lig

GökhanSazdağı

RBRight-BackDefender

Club
Besiktas JK
League
Süper Lig
Nationality
Türkiye
Age
31
Height
180 cm
Foot
Right
Valued
21 May 2026

Reading the valuation

The market values Sazdağı at €1.2M. Model A, which never saw Sazdağı during training, estimates €1.2M: the market value is 1% below that estimate.

That is a factor of ×1.01. 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 €572k, 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.

▼ −0.01A €1.2M▲ +0.74B €572k
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
50
Minutes
4,194
Goals
0
Assists
4
Started
47/50
Min / app
84
Cards
15Y 1R

Club matches, two years to the valuation date

The Valuation Journey

What moves Model A

Asking the prediction API to explain Model A for Sazdağı…

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 €1.2M

Checking API
EmergingEstablishedEliteWorld Class€2M€10M€30M€100k€1M€100MMarket €1.2MModel A €1.2M

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

Gökhan Sazdağı's percentiles among defenders: Goals per 90 18th, Assists per 90 73rd, Minutes, two years 72nd, Starts 81st, Minutes, last 365 days 50th, European club minutes 30th18thGoals73rdAssists72ndMinutes81stStarts50thRecent30thEurope

Dashed ring: the defender median (50th percentile)

Starts

Share of appearances started rather than entered from the bench.

94% this player83% defender median81st percentile

18%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
€25k
Sept 2013
Peak
€1.5M
Oct 2025
Model target
€1.2M
May 2026
Valuations
32
8 club changes
May 2026€1.2MBesiktas JKValuation the model is trained to reproduce

May 2026: €1.2M, Besiktas JK. Dotted lines mark the €2M, €10M and €30M tier boundaries.

Show as a table
DateMarket valueClub
2013-09-24€25kTurgutluspor
2014-07-09€125kFenerbahce U21
2015-01-05€450kManisaspor
2015-06-08€800kManisaspor
2016-01-04€800kGaziantep Büyüksehir Belediyespor
2016-07-14€800kGaziantep Büyüksehir Belediyespor
2017-01-09€400kGaziantep Büyüksehir Belediyespor
2017-06-30€400kGaziantep Büyüksehir Belediyespor
2018-07-04€100kHatayspor
2019-01-07€125kAdanaspor
2019-06-17€75kAdanaspor
2020-02-04€100kBoluspor
2020-08-27€225kBoluspor
2020-12-30€275kBoluspor
2021-10-12€325kKayserispor
2022-01-04€375kKayserispor
2022-03-31€425kKayserispor
2022-06-01€450kKayserispor
2022-10-27€400kKayserispor
2023-03-14€750kKayserispor
2023-06-08€750kKayserispor
2023-09-27€750kKayserispor
2023-12-21€900kKayserispor
2024-03-15€1MKayserispor
2024-05-31€1MKayserispor
2024-10-04€900kKayserispor
2024-12-23€1MKayserispor
2025-03-20€1MKayserispor
2025-06-18€1.2MKayserispor
2025-10-01€1.5MBesiktas JK
2025-12-17€1.5MBesiktas JK
2026-05-21€1.2MBesiktas JK

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
−0.012

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 45% of the 428 Süper Lig players.

€50k€300k€2M€15M€1.2MSee them in the Explorer →

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

Valued above 39% of the 2,065 defenders.

€20k€200k€2M€20M€1.2MSee them in the Explorer →

Where Sazdağı 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).