Adama
Sidibeh
CFThe Gambia · St. Johnstone FC
Player dossierPremiership
AdamaSidibeh
CFCentre-ForwardAttack
- Club
- St. Johnstone FC
- League
- Premiership
- Nationality
- The Gambia
- Age
- 27
- Height
- 173 cm
- Foot
- Right
- Valued
- 10 Dec 2025
PremiershipReading the valuation
The market values Sidibeh at €300k. Model A, which never saw Sidibeh during training, estimates €204k: the market value is 47% above that estimate.
That is a factor of ×1.47. 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 €875k, 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
- 40
- Minutes
- 2,497
- Goals
- 6
- Assists
- 2
- Started
- 27/40
- Min / app
- 62
- Cards
- 6Y 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 Sidibeh…
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 €300k
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.
68% this player59% attacker median64th 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
- €250k
- May 2024
- Peak
- €500k
- Dec 2024
- Model target
- €300k
- Dec 2025
- Valuations
- 5
- 0 club changes
Dec 2025: €300k, St. Johnstone FC. Dotted lines mark the €2M, €10M and €30M tier boundaries.
Show as a table
| Date | Market value | Club |
|---|---|---|
| 2024-05-30 | €250k | St. Johnstone FC |
| 2024-12-03 | €500k | St. Johnstone FC |
| 2025-06-17 | €500k | St. Johnstone FC |
| 2025-10-09 | €400k | St. Johnstone FC |
| 2025-12-10 | €300k | St. Johnstone FC |
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
- +0.386
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 →Premiership311 players · median €400k
Valued above 40% of the 311 Premiership players.
See them in the Explorer →Attackers, all leagues1,583 players · median €2.5M
Valued above 8% of the 1,583 attackers.
See them in the Explorer →Where Sidibeh appears
Watchlists and the comparison tray are kept in this browser only.
Near this valuation closest observed values: same league, then same position
- ForrestRWCeltic FC · Premiership€300k
- BoyleCFHibernian FC · Premiership€300k
- StryjekGKKilmarnock FC · Premiership€300k
- GeorgeGKSt. Mirren FC · Premiership€300k
- TosunCFKasimpasa · attackers€300k
- ZabolotnyiCFSpartak Moscow · attackers€300k
- LinssenCFNEC Nijmegen · attackers€300k
- EngelsLWHeracles Almelo · attackers€300k
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).