Mitchell
Weiser
RBGermany · SV Werder Bremen
Player dossierBundesliga
MitchellWeiser
RBRight-BackDefender
- Club
- SV Werder Bremen
- League
- Bundesliga
- Nationality
- Germany
- Age
- 32
- Height
- 177 cm
- Foot
- Right
- Valued
- 27 May 2026
Reading the valuation
The market values Weiser at €3M. Model A, which never saw Weiser during training, estimates €1.6M: the market value is 89% above that estimate.
That is a factor of ×1.89. 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 €1.1M, 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
- 36
- Minutes
- 3,230
- Goals
- 5
- Assists
- 9
- Started
- 36/36
- Min / app
- 90
- 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 Weiser…
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 €3M
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)
Assists per 90
Club assists per 90 minutes in the same window.
0.25 this player0.04 defender median98th 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
- Feb 2012
- Peak
- €14M
- Jun 2019
- Model target
- €3M
- May 2026
- Valuations
- 39
- 5 club changes
May 2026: €3M, SV Werder Bremen. Dotted lines mark the €2M, €10M and €30M tier boundaries.
Show as a table
| Date | Market value | Club |
|---|---|---|
| 2012-02-02 | €200k | 1.FC Köln U19 |
| 2012-03-05 | €600k | 1.FC Köln U19 |
| 2012-06-29 | €1M | 1.FC Köln U19 |
| 2013-01-04 | €1M | 1.FC Kaiserslautern |
| 2013-06-29 | €1.5M | 1.FC Kaiserslautern |
| 2014-02-12 | €1M | Bayern Munich |
| 2014-07-10 | €750k | Bayern Munich |
| 2015-02-04 | €750k | Bayern Munich |
| 2015-07-01 | €2M | Hertha BSC |
| 2016-02-15 | €5M | Hertha BSC |
| 2016-07-22 | €6M | Hertha BSC |
| 2016-10-13 | €7.5M | Hertha BSC |
| 2017-02-07 | €9M | Hertha BSC |
| 2017-06-19 | €9M | Hertha BSC |
| 2017-10-18 | €12M | Hertha BSC |
| 2017-12-28 | €12M | Hertha BSC |
| 2018-06-05 | €12M | Hertha BSC |
| 2018-12-18 | €12M | Bayer 04 Leverkusen |
| 2019-06-05 | €14M | Bayer 04 Leverkusen |
| 2019-12-17 | €14M | Bayer 04 Leverkusen |
| 2020-03-11 | €10M | Bayer 04 Leverkusen |
| 2020-04-08 | €8M | Bayer 04 Leverkusen |
| 2020-09-16 | €7M | Bayer 04 Leverkusen |
| 2020-11-26 | €4.5M | Bayer 04 Leverkusen |
| 2021-02-10 | €4.5M | Bayer 04 Leverkusen |
| 2021-06-09 | €3M | Bayer 04 Leverkusen |
| 2021-10-13 | €2M | SV Werder Bremen |
| 2021-12-15 | €1.5M | SV Werder Bremen |
| 2022-06-16 | €1.5M | SV Werder Bremen |
| 2022-09-21 | €2M | SV Werder Bremen |
| 2022-11-09 | €3.5M | SV Werder Bremen |
| 2023-03-29 | €5.5M | SV Werder Bremen |
| 2023-06-22 | €6M | SV Werder Bremen |
| 2023-12-14 | €6M | SV Werder Bremen |
| 2024-05-29 | €6M | SV Werder Bremen |
| 2024-12-20 | €5M | SV Werder Bremen |
| 2025-06-05 | €5M | SV Werder Bremen |
| 2025-12-19 | €3.5M | SV Werder Bremen |
| 2026-05-27 | €3M | 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
- +0.637
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 31% of the 451 Bundesliga players.
See them in the Explorer →Defenders, all leagues2,065 players · median €2M
Valued above 59% of the 2,065 defenders.
See them in the Explorer →Where Weiser appears
Watchlists and the comparison tray are kept in this browser only.
Near this valuation closest observed values: same league, then same position
- GötzeAMEintracht Frankfurt · Bundesliga€3M
- ArnoldCMVfL Wolfsburg · Bundesliga€3M
- CanCBBorussia Dortmund · Bundesliga€3M
- SchwäbeGK1.FC Köln · Bundesliga€3M
- AlabaCBReal Madrid · defenders€3M
- VrijCBInter Milan · defenders€3M
- KeaneCBEverton FC · defenders€3M
- HatzidiakosCBFC Copenhagen · defenders€3M
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).