Andreas
Hanche-Olsen
CBNorway · 1.FSV Mainz 05
Player dossierBundesliga
AndreasHanche-Olsen
CBCentre-BackDefender
- Club
- 1.FSV Mainz 05
- League
- Bundesliga
- Nationality
- Norway
- Age
- 29
- Height
- 185 cm
- Foot
- Right
- Valued
- 27 May 2026
BundesligaReading the valuation
The market values Hanche-Olsen at €3.5M. Model A, which never saw Hanche-Olsen during training, estimates €2.1M: the market value is 64% above that estimate.
That is a factor of ×1.64. 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
- 39
- Minutes
- 2,410
- Goals
- 1
- Assists
- 1
- Started
- 22/39
- Min / app
- 62
- Cards
- 8Y 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 Hanche-Olsen…
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 €3.5M
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)
European club minutes
Share of minutes played in UEFA club competitions.
2% this player0% defender 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
- €200k
- Dec 2016
- Peak
- €9M
- May 2024
- Model target
- €3.5M
- May 2026
- Valuations
- 22
- 2 club changes
May 2026: €3.5M, 1.FSV Mainz 05. Dotted lines mark the €2M, €10M and €30M tier boundaries.
Show as a table
| Date | Market value | Club |
|---|---|---|
| 2016-12-18 | €200k | Stabæk Fotball |
| 2017-12-23 | €400k | Stabæk Fotball |
| 2018-12-30 | €400k | Stabæk Fotball |
| 2019-12-29 | €500k | Stabæk Fotball |
| 2020-04-08 | €400k | Stabæk Fotball |
| 2020-07-25 | €600k | Stabæk Fotball |
| 2020-10-16 | €900k | KAA Gent |
| 2021-01-04 | €1.5M | KAA Gent |
| 2021-03-17 | €2M | KAA Gent |
| 2021-06-07 | €2.5M | KAA Gent |
| 2022-01-06 | €3M | KAA Gent |
| 2022-04-12 | €4M | KAA Gent |
| 2022-11-04 | €3.5M | KAA Gent |
| 2023-06-22 | €7.5M | 1.FSV Mainz 05 |
| 2023-12-14 | €7.5M | 1.FSV Mainz 05 |
| 2024-05-29 | €9M | 1.FSV Mainz 05 |
| 2024-12-20 | €7M | 1.FSV Mainz 05 |
| 2025-03-27 | €6M | 1.FSV Mainz 05 |
| 2025-06-05 | €6M | 1.FSV Mainz 05 |
| 2025-12-19 | €5M | 1.FSV Mainz 05 |
| 2026-03-20 | €4M | 1.FSV Mainz 05 |
| 2026-05-27 | €3.5M | 1.FSV Mainz 05 |
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
- +0.497
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 37% of the 451 Bundesliga players.
See them in the Explorer →Defenders, all leagues2,065 players · median €2M
Valued above 63% of the 2,065 defenders.
See them in the Explorer →Where Hanche-Olsen appears
Watchlists and the comparison tray are kept in this browser only.
Near this valuation closest observed values: same league, then same position
- TabakovicCFBorussia Mönchengladbach · Bundesliga€3.5M
- KlostermannCBRB Leipzig · Bundesliga€3.5M
- PrömelCMTSG 1899 Hoffenheim · Bundesliga€3.5M
- ÖzcanDMBorussia Dortmund · Bundesliga€3.5M
- SpinazzolaLBSSC Napoli · defenders€3.5M
- DunkCBBrighton & Hove Albion · defenders€3.5M
- KempfCBComo 1907 · defenders€3.5M
- OlazaLBFC Krasnodar · defenders€3.5M
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).