Oliver
Christensen
GKDenmark · ACF Fiorentina
Player dossierSerie A
OliverChristensen
GKGoalkeeperGoalkeeper
- Club
- ACF Fiorentina
- League
- Serie A
- Nationality
- Denmark
- Age
- 27
- Height
- 190 cm
- Foot
- Right
- Valued
- 29 May 2026
Serie AReading the valuation
The market values Christensen at €1.4M. Model A, which never saw Christensen during training, estimates €2M: the market value is 31% below that estimate.
That is a factor of ×1.46. 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 €2.6M, 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
- 9
- Minutes
- 807
- Started
- 9/9
- Min / app
- 90
- Cards
- 0Y 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 Christensen…
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 €1.4M
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)
European club minutes
Share of minutes played in UEFA club competitions.
78% this player0% goalkeeper median100th 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
- €50k
- Jun 2017
- Peak
- €4.5M
- Nov 2022
- Model target
- €1.4M
- May 2026
- Valuations
- 23
- 6 club changes
May 2026: €1.4M, ACF Fiorentina. Dotted lines mark the €2M, €10M and €30M tier boundaries.
Show as a table
| Date | Market value | Club |
|---|---|---|
| 2017-06-21 | €50k | Odense Boldklub U19 |
| 2017-12-18 | €50k | Odense Boldklub |
| 2018-06-02 | €50k | Odense Boldklub |
| 2018-12-21 | €100k | Odense Boldklub |
| 2019-06-08 | €250k | Odense Boldklub |
| 2019-09-09 | €400k | Odense Boldklub |
| 2019-12-22 | €1M | Odense Boldklub |
| 2020-04-08 | €900k | Odense Boldklub |
| 2020-07-31 | €1M | Odense Boldklub |
| 2020-12-23 | €1.5M | Odense Boldklub |
| 2021-06-04 | €1.5M | Odense Boldklub |
| 2021-12-22 | €1.5M | Hertha BSC |
| 2022-06-09 | €1.5M | Hertha BSC |
| 2022-09-21 | €3M | Hertha BSC |
| 2022-11-09 | €4.5M | Hertha BSC |
| 2023-06-22 | €4M | Hertha BSC |
| 2023-12-20 | €3.8M | ACF Fiorentina |
| 2024-06-05 | €3M | ACF Fiorentina |
| 2024-10-18 | €1.8M | ACF Fiorentina |
| 2024-12-18 | €1.5M | ACF Fiorentina |
| 2025-06-02 | €1.5M | US Salernitana 1919 |
| 2025-12-22 | €1.5M | SK Sturm Graz |
| 2026-05-29 | €1.4M | ACF Fiorentina |
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
- −0.378
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 14% of the 507 Serie A players.
See them in the Explorer →Goalkeepers, all leagues485 players · median €1M
Valued above 54% of the 485 goalkeepers.
See them in the Explorer →Where Christensen 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
- DarmianRBInter Milan · Serie A€1.4M
- RobertoCMComo 1907 · Serie A€1.4M
- GrassiDMUS Cremonese · Serie A€1.4M
- FranjicLBVenezia FC · Serie A€1.4M
- BergströmGKRCD Mallorca · goalkeepers€1.4M
- HradeckyGKAS Monaco · goalkeepers€1.5M
- BizotGKAston Villa · goalkeepers€1.5M
- ButlandGKRangers FC · goalkeepers€1.5M
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).