Alberto
Brignoli
GKItaly · AEK Athens
Player dossierSuper League
AlbertoBrignoli
GKGoalkeeperGoalkeeper
- Club
- AEK Athens
- League
- Super League
- Nationality
- Italy
- Age
- 34
- Height
- 188 cm
- Foot
- Left
- Valued
- 4 Jun 2026
Super LeagueReading the valuation
The market values Brignoli at €700k. Model A, which never saw Brignoli during training, estimates €176k: the market value is 299% above that estimate.
That is a factor of ×3.99. 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 €191k, 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.
- Apps
- 12
- Minutes
- 1,110
- Started
- 12/12
- Min / app
- 93
- Cards
- 3Y 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 Brignoli…
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 €700k
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)
Starts
Share of appearances started rather than entered from the bench.
100% this player100% goalkeeper median62nd 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
- €75k
- Sept 2011
- Peak
- €1.8M
- May 2023
- Model target
- €700k
- Jun 2026
- Valuations
- 34
- 10 club changes
Jun 2026: €700k, AEK Athens. Dotted lines mark the €2M, €10M and €30M tier boundaries.
Show as a table
| Date | Market value | Club |
|---|---|---|
| 2011-09-21 | €75k | AC Lumezzane |
| 2011-12-15 | €200k | AC Lumezzane |
| 2012-04-29 | €300k | AC Lumezzane |
| 2012-12-26 | €250k | Ternana Calcio |
| 2013-07-05 | €600k | Ternana Calcio |
| 2014-01-29 | €600k | Ternana Calcio |
| 2014-07-15 | €800k | Ternana Calcio |
| 2015-02-10 | €1M | Ternana Calcio |
| 2015-06-29 | €1.5M | Ternana Calcio |
| 2016-01-04 | €1.3M | UC Sampdoria |
| 2016-07-15 | €1.2M | Juventus FC |
| 2017-01-06 | €1M | Juventus FC |
| 2017-06-09 | €1M | AC Perugia Calcio |
| 2017-12-29 | €1.3M | Benevento Calcio |
| 2018-06-07 | €1M | Benevento Calcio |
| 2019-01-17 | €1M | US Palermo |
| 2019-06-05 | €1.3M | US Palermo |
| 2019-12-30 | €1M | FC Empoli |
| 2020-04-08 | €800k | FC Empoli |
| 2020-08-21 | €1M | Empoli FC |
| 2021-02-22 | €1M | Empoli FC |
| 2021-06-24 | €1.2M | Empoli FC |
| 2021-11-01 | €1.2M | Panathinaikos |
| 2022-06-09 | €1.2M | Panathinaikos |
| 2022-11-07 | €1.5M | Panathinaikos |
| 2023-05-22 | €1.8M | Panathinaikos |
| 2023-12-20 | €1.8M | Panathinaikos |
| 2024-03-06 | €1.5M | Panathinaikos |
| 2024-05-30 | €1.5M | Panathinaikos |
| 2024-09-26 | €1.2M | AEK Athens |
| 2024-12-18 | €1M | AEK Athens |
| 2025-05-23 | €900k | AEK Athens |
| 2025-12-12 | €800k | AEK Athens |
| 2026-06-04 | €700k | AEK Athens |
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
- +1.383
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 55% of the 356 Super League players.
See them in the Explorer →Goalkeepers, all leagues485 players · median €1M
Valued above 35% of the 485 goalkeepers.
See them in the Explorer →Where Brignoli appears
Watchlists and the comparison tray are kept in this browser only.
Near this valuation closest observed values: same league, then same position
- PereyraCMAEK Athens · Super League€700k
- UronenLBAtromitos Athens · Super League€700k
- GarcíaDMOlympiacos Piraeus · Super League€700k
- SyllaLBAsteras Aktor · Super League€700k
- BlaswichGKBayer 04 Leverkusen · goalkeepers€700k
- HornGKVfL Bochum · goalkeepers€700k
- DmitrovicGKRCD Espanyol Barcelona · goalkeepers€700k
- MüllerGKVfL Wolfsburg · goalkeepers€700k
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).