Gerrit
Holtmann
LWPhilippines · VfL Bochum
Player dossierBundesliga
GerritHoltmann
LWLeft WingerAttack
- Club
- VfL Bochum
- League
- Bundesliga
- Nationality
- Philippines
- Age
- 31
- Height
- 185 cm
- Foot
- Left
- Valued
- 1 Jun 2026
BundesligaReading the valuation
The market values Holtmann at €700k. Model A, which never saw Holtmann during training, estimates €926k: the market value is 24% below that estimate.
That is a factor of ×1.32. 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 €565k, closer to the market here, although it is usually further off (typical miss ×2.07).
A gap describes the model's arithmetic for this player's inputs, not what the player is worth.
- Apps
- 25
- Minutes
- 1,272
- Goals
- 3
- Assists
- 1
- Started
- 14/25
- Min / app
- 51
- Cards
- 2Y 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 Holtmann…
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 €700k
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 1,583 attackers
Dashed ring: the attacker median (50th percentile)
Starts
Share of appearances started rather than entered from the bench.
56% this player59% attacker median45th 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
- €25k
- Aug 2014
- Peak
- €4.5M
- Mar 2022
- Model target
- €700k
- Jun 2026
- Valuations
- 35
- 7 club changes
Jun 2026: €700k, VfL Bochum. Dotted lines mark the €2M, €10M and €30M tier boundaries.
Show as a table
| Date | Market value | Club |
|---|---|---|
| 2014-08-18 | €25k | Eintracht Braunschweig II |
| 2014-10-09 | €75k | Eintracht Braunschweig II |
| 2015-02-08 | €125k | Eintracht Braunschweig II |
| 2015-07-01 | €125k | Eintracht Braunschweig |
| 2015-10-22 | €300k | Eintracht Braunschweig |
| 2016-02-11 | €600k | Eintracht Braunschweig |
| 2016-07-22 | €2.5M | 1.FSV Mainz 05 |
| 2017-02-07 | €1.8M | 1.FSV Mainz 05 |
| 2017-06-19 | €1.5M | 1.FSV Mainz 05 |
| 2017-12-28 | €1.5M | 1.FSV Mainz 05 |
| 2018-06-05 | €2M | 1.FSV Mainz 05 |
| 2018-12-18 | €2M | 1.FSV Mainz 05 |
| 2019-06-05 | €1.5M | 1.FSV Mainz 05 |
| 2019-12-17 | €1.5M | SC Paderborn 07 |
| 2020-04-08 | €1.2M | SC Paderborn 07 |
| 2020-11-18 | €1M | VfL Bochum |
| 2021-02-08 | €1M | VfL Bochum |
| 2021-03-29 | €1.2M | VfL Bochum |
| 2021-06-16 | €1.8M | VfL Bochum |
| 2021-10-07 | €2.2M | VfL Bochum |
| 2021-12-22 | €3M | VfL Bochum |
| 2022-03-24 | €4.5M | VfL Bochum |
| 2022-06-09 | €4.5M | VfL Bochum |
| 2022-11-09 | €4.5M | VfL Bochum |
| 2023-03-29 | €3.5M | VfL Bochum |
| 2023-06-22 | €2.5M | VfL Bochum |
| 2023-09-27 | €2.3M | Antalyaspor |
| 2023-12-21 | €2M | Antalyaspor |
| 2024-03-27 | €1.5M | SV Darmstadt 98 |
| 2024-05-29 | €1M | SV Darmstadt 98 |
| 2024-10-09 | €700k | VfL Bochum |
| 2024-12-20 | €700k | VfL Bochum |
| 2025-06-05 | €700k | VfL Bochum |
| 2025-12-16 | €700k | VfL Bochum |
| 2026-06-01 | €700k | VfL Bochum |
Audit context group-level, not about this player
- Audit group
- non-UEFA
- Population gap, Model A
- +0.093 95% CI +0.063 to +0.124
- This player, market vs held-out A
- −0.280
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 3% of the 451 Bundesliga players.
See them in the Explorer →Attackers, all leagues1,583 players · median €2.5M
Valued above 22% of the 1,583 attackers.
See them in the Explorer →Where Holtmann appears
Watchlists and the comparison tray are kept in this browser only.
Near this valuation closest observed values: same league, then same position
- BlaswichGKBayer 04 Leverkusen · Bundesliga€700k
- HornGKVfL Bochum · Bundesliga€700k
- MüllerGKVfL Wolfsburg · Bundesliga€700k
- BredlowGKVfB Stuttgart · Bundesliga€700k
- StuaniCFGirona FC · attackers€700k
- GarcíaCFRCD Espanyol Barcelona · attackers€700k
- PaciênciaCFCD Santa Clara · attackers€700k
- SamattaCFLe Havre AC · attackers€700k
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).