Georgios
Giannoutsos
CBGreece · POT Iraklis Thessaloniki
Player dossierSuper League
GeorgiosGiannoutsos
CBCentre-BackDefender
- Club
- POT Iraklis Thessaloniki
- League
- Super League
- Nationality
- Greece
- Age
- 27
- Height
- 183 cm
- Foot
- Left
- Valued
- 29 Dec 2025
Reading the valuation
The market values Giannoutsos at €300k. Model A, which never saw Giannoutsos during training, estimates €368k: the market value is 19% below that estimate.
That is a factor of ×1.23. 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 €521k, 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.
- Apps
- 22
- Minutes
- 1,824
- Goals
- 0
- Assists
- 0
- Started
- 20/22
- Min / app
- 83
- Cards
- 0Y 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 Giannoutsos…
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 €300k
Checking APIAsking 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
Dashed ring: the defender median (50th percentile)
Starts
Share of appearances started rather than entered from the bench.
91% this player83% defender median72nd percentile
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
- Feb 2017
- Peak
- €300k
- May 2025
- Model target
- €300k
- Dec 2025
- Valuations
- 17
- 4 club changes
Dec 2025: €300k, POT Iraklis Thessaloniki. Dotted lines mark the €2M, €10M and €30M tier boundaries.
Show as a table
| Date | Market value | Club |
|---|---|---|
| 2017-02-11 | €50k | AEK Athens |
| 2017-05-11 | €50k | AEK Athens |
| 2017-08-21 | €150k | AEK Athens |
| 2017-12-18 | €200k | AEK Athens |
| 2018-05-22 | €200k | AEK Athens |
| 2018-12-07 | €200k | AEK Athens |
| 2019-05-21 | €200k | AEK Athens |
| 2021-06-28 | €250k | AO Episkopi Rethymnou |
| 2021-12-28 | €250k | AEK Athens B |
| 2022-06-27 | €250k | AEK Athens B |
| 2023-09-21 | €150k | PAS Lamia 1964 |
| 2023-12-20 | €150k | PAS Lamia 1964 |
| 2024-05-30 | €150k | PAS Lamia 1964 |
| 2024-09-26 | €250k | PAS Lamia 1964 |
| 2024-12-18 | €250k | PAS Lamia 1964 |
| 2025-05-23 | €300k | PAS Lamia 1964 |
| 2025-12-29 | €300k | POT Iraklis Thessaloniki |
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
- −0.205
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 →Super League356 players · median €600k
Valued above 20% of the 356 Super League players.
See them in the Explorer →Defenders, all leagues2,065 players · median €2M
Valued above 9% of the 2,065 defenders.
See them in the Explorer →Where Giannoutsos appears
Watchlists and the comparison tray are kept in this browser only.
Near this valuation closest observed values: same league, then same position
- PaschalakisGKOlympiacos Piraeus · Super League€300k
- MavriasRBPanetolikos · Super League€300k
- BouchalakisCMPanetolikos · Super League€300k
- ChouchoumisLBAE Kifisia · Super League€300k
- SmithRBAFC Bournemouth · defenders€300k
- ClyneRBCrystal Palace · defenders€300k
- NauberCBGo Ahead Eagles · defenders€300k
- GómezCBFC Alverca · defenders€300k
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).