Leon
Avdullahu
DMKosovo · TSG 1899 Hoffenheim
Player dossierBundesliga
LeonAvdullahu
DMDefensive MidfieldMidfield
- Club
- TSG 1899 Hoffenheim
- League
- Bundesliga
- Nationality
- Kosovo
- Age
- 22
- Height
- 185 cm
- Foot
- Right
- Valued
- 27 May 2026
BundesligaReading the valuation
The market values Avdullahu at €30M. Model A, which never saw Avdullahu during training, estimates €22.8M: the market value is 32% above 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 €2.8M, 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
- 35
- Minutes
- 3,048
- Goals
- 0
- Assists
- 1
- Started
- 34/35
- Min / app
- 87
- Cards
- 5Y 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 Avdullahu…
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 €30M
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 1,687 midfielders
Dashed ring: the midfielder median (50th percentile)
Starts
Share of appearances started rather than entered from the bench.
97% this player69% midfielder median97th 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
- Dec 2022
- Peak
- €30M
- May 2026
- Model target
- €30M
- May 2026
- Valuations
- 15
- 2 club changes
May 2026: €30M, TSG 1899 Hoffenheim. Dotted lines mark the €2M, €10M and €30M tier boundaries.
Show as a table
| Date | Market value | Club |
|---|---|---|
| 2022-12-29 | €25k | FC Basel 1893 U21 |
| 2023-03-28 | €50k | FC Basel 1893 U21 |
| 2023-06-07 | €100k | FC Basel 1893 U21 |
| 2023-10-19 | €300k | FC Basel 1893 |
| 2023-12-21 | €500k | FC Basel 1893 |
| 2024-03-28 | €2M | FC Basel 1893 |
| 2024-05-31 | €2M | FC Basel 1893 |
| 2024-09-27 | €3.5M | FC Basel 1893 |
| 2024-12-23 | €5M | FC Basel 1893 |
| 2025-03-20 | €7.5M | FC Basel 1893 |
| 2025-06-10 | €10M | FC Basel 1893 |
| 2025-10-14 | €12M | TSG 1899 Hoffenheim |
| 2025-12-19 | €17M | TSG 1899 Hoffenheim |
| 2026-03-20 | €25M | TSG 1899 Hoffenheim |
| 2026-05-27 | €30M | TSG 1899 Hoffenheim |
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
- +0.275
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 90% of the 451 Bundesliga players.
See them in the Explorer →Midfielders, all leagues1,687 players · median €2M
Valued above 93% of the 1,687 midfielders.
See them in the Explorer →Where Avdullahu appears
Watchlists and the comparison tray are kept in this browser only.
Near this valuation closest observed values: same league, then same position
- BurkardtCFEintracht Frankfurt · Bundesliga€30M
- TillmanAMBayer 04 Leverkusen · Bundesliga€30M
- RômuloCFRB Leipzig · Bundesliga€30M
- LaimerRBBayern Munich · Bundesliga€32M
- TielemansCMAston Villa · midfielders€30M
- McKennieCMJuventus FC · midfielders€30M
- RuizCMParis Saint-Germain · midfielders€30M
- AmpaduDMLeeds United · midfielders€30M
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).