Antonis
Tsiftsis
GKGreece · PAOK Thessaloniki
Player dossierSuper League
AntonisTsiftsis
GKGoalkeeperGoalkeeper
- Club
- PAOK Thessaloniki
- League
- Super League
- Nationality
- Greece
- Age
- 26
- Height
- 191 cm
- Foot
- Both
- Valued
- 4 Jun 2026
Reading the valuation
The market values Tsiftsis at €1.2M. Model A, which never saw Tsiftsis during training, estimates €2.1M: the market value is 44% below that estimate.
That is a factor of ×1.77. 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 €2.8M, 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
- 28
- Minutes
- 2,409
- Started
- 25/28
- Min / app
- 86
- Cards
- 2Y 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 Tsiftsis…
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 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 485 goalkeepers
Dashed ring: the goalkeeper median (50th percentile)
European club minutes
Share of minutes played in UEFA club competitions.
22% this player0% goalkeeper median87th 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
- Aug 2017
- Peak
- €1.2M
- Jun 2026
- Model target
- €1.2M
- Jun 2026
- Valuations
- 21
- 3 club changes
Jun 2026: €1.2M, PAOK Thessaloniki. Dotted lines mark the €2M, €10M and €30M tier boundaries.
Show as a table
| Date | Market value | Club |
|---|---|---|
| 2017-08-21 | €50k | Asteras Tripolis |
| 2017-12-18 | €100k | Asteras Tripolis |
| 2018-05-22 | €150k | Asteras Tripolis |
| 2018-12-07 | €150k | Asteras Tripolis |
| 2019-05-21 | €150k | Asteras Tripolis |
| 2019-12-18 | €150k | Asteras Tripolis |
| 2020-08-04 | €150k | Asteras Tripolis |
| 2021-02-12 | €200k | Asteras Tripolis |
| 2021-05-30 | €400k | Asteras Tripolis |
| 2021-11-01 | €400k | Asteras Tripolis |
| 2022-06-09 | €600k | Asteras Tripolis |
| 2022-11-07 | €500k | Asteras Tripolis |
| 2023-05-22 | €500k | Asteras Tripolis |
| 2023-12-29 | €400k | Raków Częstochowa |
| 2024-05-30 | €450k | Asteras Tripolis |
| 2024-09-26 | €500k | PAOK Thessaloniki |
| 2024-12-18 | €500k | PAOK Thessaloniki |
| 2025-05-23 | €500k | PAOK Thessaloniki |
| 2025-12-12 | €600k | PAOK Thessaloniki |
| 2026-03-06 | €800k | PAOK Thessaloniki |
| 2026-06-04 | €1.2M | PAOK 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
- −0.572
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.
See them in the Explorer →Goalkeepers, all leagues485 players · median €1M
Valued above 52% of the 485 goalkeepers.
See them in the Explorer →Where Tsiftsis appears
Watchlists and the comparison tray are kept in this browser only.
Near this valuation closest observed values: same league, then same position
- OzdoevDMPAOK Thessaloniki · Super League€1.2M
- SiopisDMPanathinaikos · Super League€1.2M
- PelkasAMPAOK Thessaloniki · Super League€1.2M
- MoutoussamyCMAtromitos Athens · Super League€1.2M
- FernandesGKHamburger SV · goalkeepers€1.2M
- CoosemansGKRSC Anderlecht · goalkeepers€1.2M
- PaleariGKTorino FC · goalkeepers€1.2M
- MontipòGKHellas Verona · goalkeepers€1.2M
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).