Zisis
Karachalios
DMGreece · OFI Crete
Player dossierSuper League
ZisisKarachalios
DMDefensive MidfieldMidfield
- Club
- OFI Crete
- League
- Super League
- Nationality
- Greece
- Age
- 30
- Height
- 181 cm
- Foot
- Right
- Valued
- 4 Jun 2026
Reading the valuation
The market values Karachalios at €600k. Model A, which never saw Karachalios during training, estimates €884k: the market value is 32% below that estimate.
That is a factor of ×1.47. 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 €1M, 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
- 56
- Minutes
- 4,166
- Goals
- 2
- Assists
- 2
- Started
- 47/56
- Min / app
- 74
- 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 Karachalios…
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 €600k
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 1,687 midfielders
Dashed ring: the midfielder median (50th percentile)
Starts
Share of appearances started rather than entered from the bench.
84% this player69% midfielder median77th 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
- €100k
- Nov 2014
- Peak
- €600k
- Jun 2022
- Model target
- €600k
- Jun 2026
- Valuations
- 20
- 3 club changes
Jun 2026: €600k, OFI Crete. Dotted lines mark the €2M, €10M and €30M tier boundaries.
Show as a table
| Date | Market value | Club |
|---|---|---|
| 2014-11-11 | €100k | Olympiacos Piraeus U20 |
| 2016-10-01 | €150k | Levadiakos |
| 2016-12-21 | €150k | Levadiakos |
| 2017-05-11 | €200k | Levadiakos |
| 2017-12-18 | €250k | Levadiakos |
| 2018-05-22 | €250k | Levadiakos |
| 2018-12-07 | €300k | Levadiakos |
| 2019-05-21 | €300k | Levadiakos |
| 2021-03-08 | €350k | Levadiakos |
| 2021-05-21 | €400k | Levadiakos |
| 2021-11-01 | €500k | PAS Giannina |
| 2022-06-09 | €600k | PAS Giannina |
| 2022-11-07 | €600k | PAS Giannina |
| 2023-05-22 | €600k | PAS Giannina |
| 2023-12-20 | €600k | PAS Giannina |
| 2024-05-30 | €500k | PAS Giannina |
| 2024-12-18 | €500k | OFI Crete |
| 2025-05-23 | €600k | OFI Crete |
| 2025-12-12 | €600k | OFI Crete |
| 2026-06-04 | €600k | OFI Crete |
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
- −0.387
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 49% of the 356 Super League players.
See them in the Explorer →Midfielders, all leagues1,687 players · median €2M
Valued above 20% of the 1,687 midfielders.
See them in the Explorer →Where Karachalios appears
Watchlists and the comparison tray are kept in this browser only.
Near this valuation closest observed values: same league, then same position
- SistoLWAE Larisa · Super League€600k
- BatubinsikaCBAE Larisa · Super League€600k
- PokornyCBAE Kifisia · Super League€600k
- JocaRWVolos NFC · Super League€600k
- LarssonAMFatih Karagümrük · midfielders€600k
- TimofeevDMLokomotiv Moscow · midfielders€600k
- TankovskyiCMLNZ Cherkasy · midfielders€600k
- ShvetsDMRubin Kazan · midfielders€600k
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).