Niklas
Stark
CBGermany · SV Werder Bremen
Player dossierBundesliga
NiklasStark
CBCentre-BackDefender
- Club
- SV Werder Bremen
- League
- Bundesliga
- Nationality
- Germany
- Age
- 31
- Height
- 190 cm
- Foot
- Right
- Valued
- 27 May 2026
Reading the valuation
The market values Stark at €2.5M. Model A, which never saw Stark during training, estimates €1.4M: the market value is 81% above that estimate.
That is a factor of ×1.81. 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 €503k, 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
- 44
- Minutes
- 3,143
- Goals
- 0
- Assists
- 1
- Started
- 38/44
- Min / app
- 71
- Cards
- 12Y 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 Stark…
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 €2.5M
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)
Starts
Share of appearances started rather than entered from the bench.
86% this player83% defender median59th 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
- €150k
- Jan 2013
- Peak
- €20M
- Oct 2018
- Model target
- €2.5M
- May 2026
- Valuations
- 39
- 2 club changes
May 2026: €2.5M, SV Werder Bremen. Dotted lines mark the €2M, €10M and €30M tier boundaries.
Show as a table
| Date | Market value | Club |
|---|---|---|
| 2013-01-26 | €150k | 1.FC Nuremberg |
| 2013-06-30 | €250k | 1.FC Nuremberg |
| 2013-08-27 | €500k | 1.FC Nuremberg |
| 2013-11-05 | €1.5M | 1.FC Nuremberg |
| 2014-02-12 | €2M | 1.FC Nuremberg |
| 2014-07-10 | €2M | 1.FC Nuremberg |
| 2015-01-13 | €2M | 1.FC Nuremberg |
| 2015-07-01 | €2M | 1.FC Nuremberg |
| 2016-02-15 | €2.5M | Hertha BSC |
| 2016-04-13 | €3.5M | Hertha BSC |
| 2016-07-22 | €4.5M | Hertha BSC |
| 2017-02-07 | €6.5M | Hertha BSC |
| 2017-03-22 | €8M | Hertha BSC |
| 2017-06-19 | €10M | Hertha BSC |
| 2017-12-28 | €12M | Hertha BSC |
| 2018-04-04 | €15M | Hertha BSC |
| 2018-06-05 | €15M | Hertha BSC |
| 2018-10-22 | €20M | Hertha BSC |
| 2018-12-18 | €20M | Hertha BSC |
| 2019-06-05 | €20M | Hertha BSC |
| 2019-12-17 | €20M | Hertha BSC |
| 2020-04-08 | €16M | Hertha BSC |
| 2020-07-08 | €13M | Hertha BSC |
| 2020-09-16 | €10M | Hertha BSC |
| 2021-02-10 | €10M | Hertha BSC |
| 2021-06-09 | €10M | Hertha BSC |
| 2021-12-22 | €10M | Hertha BSC |
| 2022-03-24 | €7.5M | Hertha BSC |
| 2022-06-09 | €6.5M | Hertha BSC |
| 2022-09-21 | €4.5M | SV Werder Bremen |
| 2022-11-09 | €4.5M | SV Werder Bremen |
| 2023-03-29 | €5.5M | SV Werder Bremen |
| 2023-06-22 | €5.5M | SV Werder Bremen |
| 2023-12-14 | €5.5M | SV Werder Bremen |
| 2024-05-29 | €5.5M | SV Werder Bremen |
| 2024-12-20 | €5M | SV Werder Bremen |
| 2025-06-05 | €4M | SV Werder Bremen |
| 2025-12-19 | €3.5M | SV Werder Bremen |
| 2026-05-27 | €2.5M | SV Werder Bremen |
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
- +0.591
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 →Bundesliga451 players · median €5M
Valued above 25% of the 451 Bundesliga players.
See them in the Explorer →Defenders, all leagues2,065 players · median €2M
Valued above 54% of the 2,065 defenders.
See them in the Explorer →Where Stark appears
Watchlists and the comparison tray are kept in this browser only.
Near this valuation closest observed values: same league, then same position
- KramaricSSTSG 1899 Hoffenheim · Bundesliga€2.5M
- BaumannGKTSG 1899 Hoffenheim · Bundesliga€2.5M
- EriksenAMVfL Wolfsburg · Bundesliga€2.5M
- MainkaCB1.FC Heidenheim 1846 · Bundesliga€2.5M
- GraditCBRC Lens · defenders€2.5M
- CoufalRBTSG 1899 Hoffenheim · defenders€2.5M
- MataCBOlympique Lyon · defenders€2.5M
- WolfRBFC Augsburg · defenders€2.5M
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).