Martin
Vitík
CBCzech Republic · Bologna FC 1909
Player dossierSerie A
MartinVitík
CBCentre-BackDefender
- Club
- Bologna FC 1909
- League
- Serie A
- Nationality
- Czech Republic
- Age
- 23
- Height
- 193 cm
- Foot
- Right
- Valued
- 29 May 2026
Serie AReading the valuation
The market values Vitík at €13M. Model A, which never saw Vitík during training, estimates €11.9M: the market value is 9% above that estimate.
That is a factor of ×1.09. 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 €7.6M, 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
- 43
- Minutes
- 3,188
- Goals
- 0
- Assists
- 0
- Started
- 35/43
- Min / app
- 74
- Cards
- 11Y 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 Vitík…
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 €13M
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 2,065 defenders
Dashed ring: the defender median (50th percentile)
European club minutes
Share of minutes played in UEFA club competitions.
56% this player0% defender median99th 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
- €200k
- Dec 2020
- Peak
- €15M
- Sept 2024
- Model target
- €13M
- May 2026
- Valuations
- 17
- 2 club changes
May 2026: €13M, Bologna FC 1909. Dotted lines mark the €2M, €10M and €30M tier boundaries.
Show as a table
| Date | Market value | Club |
|---|---|---|
| 2020-12-27 | €200k | AC Sparta Prague U19 |
| 2021-04-19 | €1M | AC Sparta Prague |
| 2021-06-25 | €1.5M | AC Sparta Prague |
| 2021-12-26 | €1.5M | AC Sparta Prague |
| 2022-06-22 | €2.2M | AC Sparta Prague |
| 2022-12-14 | €2.2M | AC Sparta Prague |
| 2023-06-20 | €2.5M | AC Sparta Prague |
| 2023-09-20 | €3.5M | AC Sparta Prague |
| 2023-12-20 | €5M | AC Sparta Prague |
| 2024-03-27 | €9M | AC Sparta Prague |
| 2024-06-05 | €12M | AC Sparta Prague |
| 2024-09-27 | €15M | AC Sparta Prague |
| 2024-12-20 | €15M | AC Sparta Prague |
| 2025-04-01 | €13M | AC Sparta Prague |
| 2025-06-17 | €11M | AC Sparta Prague |
| 2025-12-23 | €10M | Bologna FC 1909 |
| 2026-05-29 | €13M | Bologna FC 1909 |
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
- +0.086
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 →Serie A507 players · median €5.5M
Valued above 72% of the 507 Serie A players.
See them in the Explorer →Defenders, all leagues2,065 players · median €2M
Valued above 86% of the 2,065 defenders.
See them in the Explorer →Where Vitík appears
- TerminalSerie A in the Player Explorer
- TerminalSerie A on the League Landscape
Watchlists and the comparison tray are kept in this browser only.
Near this valuation closest observed values: same league, then same position
- ØstigårdCBGenoa CFC · Serie A€13M
- CaqueretCMComo 1907 · Serie A€13M
- ElmasAMSSC Napoli · Serie A€13M
- HeggemCBBologna FC 1909 · Serie A€13M
- GomezCBLiverpool FC · defenders€13M
- HenryLBBrentford FC · defenders€13M
- AldereteCBSunderland AFC · defenders€13M
- DoekhiCB1.FC Union Berlin · defenders€13M
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).