FairValue

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Manolis

Siopis

DMGreece · Panathinaikos

№ 182688Emerging €1.2M +0.03

Player dossierSuper League

ManolisSiopis

DMDefensive MidfieldMidfield

Club
Panathinaikos
League
Super League
Nationality
Greece
Age
32
Height
168 cm
Foot
Right
Valued
4 Jun 2026

Reading the valuation

The market values Siopis at €1.2M. Model A, which never saw Siopis during training, estimates €1.2M: the market value is 3% above that estimate.

That is a factor of ×1.03. 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 €1.4M, 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.

▲ +0.03A €1.2M▼ −0.17B €1.4M
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
41
Minutes
1,961
Goals
0
Assists
0
Started
20/41
Min / app
48
Cards
9Y 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 Siopis…

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 1,687 midfielders

Manolis Siopis's percentiles among midfielders: Goals per 90 10th, Assists per 90 8th, Minutes, two years 35th, Starts 20th, Minutes, last 365 days 53rd, European club minutes 91st10thGoals8thAssists35thMinutes20thStarts53rdRecent91stEurope

Dashed ring: the midfielder median (50th percentile)

European club minutes

Share of minutes played in UEFA club competitions.

25% this player0% midfielder median91st 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
€250k
Dec 2013
Peak
€5.5M
Jun 2022
Model target
€1.2M
Jun 2026
Valuations
35
6 club changes
Jun 2026€1.2MPanathinaikosValuation the model is trained to reproduce

Jun 2026: €1.2M, Panathinaikos. Dotted lines mark the €2M, €10M and €30M tier boundaries.

Show as a table
DateMarket valueClub
2013-12-02€250kPlatanias Chania
2014-03-28€350kPlatanias Chania
2014-11-11€450kPanionios FC
2015-05-10€450kPanionios FC
2015-09-27€450kPanionios FC
2016-02-21€600kPanionios FC
2016-06-21€800kPanionios FC
2016-12-21€1MPanionios FC
2017-05-11€1.5MPanionios FC
2017-12-18€1.5MPanionios FC
2018-05-22€1.5MPanionios FC
2018-12-07€1MAris Thessaloniki
2019-05-21€1MAris Thessaloniki
2020-01-03€1.3MAlanyaspor
2020-04-08€1MAlanyaspor
2020-08-04€1.4MAlanyaspor
2020-12-23€2.3MAlanyaspor
2021-03-16€2.6MAlanyaspor
2021-05-21€2.7MAlanyaspor
2021-10-12€2.6MTrabzonspor
2022-01-04€3.8MTrabzonspor
2022-03-31€4.8MTrabzonspor
2022-06-01€5.5MTrabzonspor
2022-10-27€5.5MTrabzonspor
2023-03-14€5.5MTrabzonspor
2023-06-08€5.5MTrabzonspor
2023-10-27€4MCardiff City
2023-12-21€3.5MCardiff City
2024-03-07€3.2MCardiff City
2024-05-24€3MCardiff City
2024-12-30€2.2MCardiff City
2025-03-14€2MPanathinaikos
2025-05-23€1.8MPanathinaikos
2025-12-12€1.5MPanathinaikos
2026-06-04€1.2MPanathinaikos

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
+0.030

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 69% of the 356 Super League players.

€20k€150k€1M€7.5M€1.2MSee them in the Explorer →

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

Valued above 35% of the 1,687 midfielders.

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

Where Siopis 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).