FairValue

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Christos

Zafeiris

CMGreece · PAOK Thessaloniki

№ 580978Elite €3.2M +1.22

Player dossierSuper League

ChristosZafeiris

CMCentral MidfieldMidfield

Club
PAOK Thessaloniki
League
Super League
Nationality
Greece
Age
23
Height
173 cm
Foot
Right
Valued
4 Jun 2026

Reading the valuation

The market values Zafeiris at €11M. Model A, which never saw Zafeiris during training, estimates €3.2M: the market value is 240% above that estimate.

That is a factor of ×3.40. 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 €6M, 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.

▲ +1.22A €3.2M▲ +0.61B €6M
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
35
Minutes
2,559
Goals
1
Assists
2
Started
28/35
Min / app
73
Cards
7Y 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 Zafeiris…

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 €11M

Checking API
EmergingEstablishedEliteWorld Class€2M€10M€30M€100k€1M€100MMarket €11MModel A €3.2M

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 1,687 midfielders

Christos Zafeiris's percentiles among midfielders: Goals per 90 26th, Assists per 90 39th, Minutes, two years 49th, Starts 70th, Minutes, last 365 days 54th, European club minutes 100th26thGoals39thAssists49thMinutes70thStarts54thRecent100thEurope

Dashed ring: the midfielder median (50th percentile)

European club minutes

Share of minutes played in UEFA club competitions.

59% this player0% midfielder median100th percentile

0%peer deciles · median line · this player ●85%

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 2020
Peak
€11M
Dec 2024
Model target
€11M
Jun 2026
Valuations
15
3 club changes
Jun 2026€11MPAOK ThessalonikiValuation the model is trained to reproduce

Jun 2026: €11M, PAOK Thessaloniki. Dotted lines mark the €2M, €10M and €30M tier boundaries.

Show as a table
DateMarket valueClub
2020-07-25€50kGrorud IL
2020-12-31€100kGrorud IL
2022-01-03€300kFK Haugesund
2022-07-01€600kFK Haugesund
2022-12-09€1.5MFK Haugesund
2023-06-20€2.5MSK Slavia Prague
2023-09-20€4.5MSK Slavia Prague
2023-12-20€5MSK Slavia Prague
2024-03-27€7MSK Slavia Prague
2024-06-05€7MSK Slavia Prague
2024-09-27€8.5MSK Slavia Prague
2024-12-20€11MSK Slavia Prague
2025-06-17€11MSK Slavia Prague
2025-12-22€11MSK Slavia Prague
2026-06-04€11MPAOK 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
+1.225

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

Joint 5th highest observed value among 356 Super League players.

€20k€150k€1M€7.5M€11MSee them in the Explorer →

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

Valued above 81% of the 1,687 midfielders.

€20k€200k€2M€20M€11MSee them in the Explorer →

Where Zafeiris 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).