Filip
Szymczak
RWPoland · Royal Charleroi SC
Player dossierPro League
FilipSzymczak
RWRight WingerAttack
- Club
- Royal Charleroi SC
- League
- Pro League
- Nationality
- Poland
- Age
- 24
- Height
- 187 cm
- Foot
- Right
- Valued
- 4 Jun 2026
Pro LeagueReading the valuation
The market values Szymczak at €600k. Model A, which never saw Szymczak during training, estimates €769k: the market value is 22% below that estimate.
That is a factor of ×1.28. 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 €2M, 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
- 24
- Minutes
- 551
- Goals
- 0
- Assists
- 1
- Started
- 2/24
- Min / app
- 23
- Cards
- 1Y 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 Szymczak…
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 €600k
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)
European club minutes
Share of minutes played in UEFA club competitions.
49% this player0% attacker median99th 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 2019
- Peak
- €3M
- Oct 2023
- Model target
- €600k
- Jun 2026
- Valuations
- 19
- 4 club changes
Jun 2026: €600k, Royal Charleroi SC. Dotted lines mark the €2M, €10M and €30M tier boundaries.
Show as a table
| Date | Market value | Club |
|---|---|---|
| 2019-06-29 | €50k | Lech Poznan |
| 2020-01-15 | €100k | Lech Poznan |
| 2021-01-15 | €300k | Lech Poznan |
| 2021-05-21 | €400k | Lech Poznan |
| 2022-01-14 | €400k | GKS Katowice |
| 2022-06-24 | €500k | GKS Katowice |
| 2022-11-16 | €700k | Lech Poznan |
| 2023-03-30 | €2M | Lech Poznan |
| 2023-06-09 | €2M | Lech Poznan |
| 2023-10-06 | €3M | Lech Poznan |
| 2023-12-29 | €3M | Lech Poznan |
| 2024-03-28 | €2.5M | Lech Poznan |
| 2024-06-07 | €2M | Lech Poznan |
| 2024-09-20 | €1.5M | Lech Poznan |
| 2024-12-09 | €1.2M | Lech Poznan |
| 2025-04-03 | €1M | GKS Katowice |
| 2025-06-06 | €1M | GKS Katowice |
| 2025-12-10 | €800k | Royal Charleroi SC |
| 2026-06-04 | €600k | Royal Charleroi SC |
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
- −0.248
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 →Pro League350 players · median €1.8M
Valued above 13% of the 350 Pro League players.
See them in the Explorer →Attackers, all leagues1,583 players · median €2.5M
Valued above 19% of the 1,583 attackers.
See them in the Explorer →Where Szymczak appears
Watchlists and the comparison tray are kept in this browser only.
Near this valuation closest observed values: same league, then same position
- GallonGKFCV Dender EH · Pro League€600k
- BijlRBRoyal Antwerp FC · Pro League€600k
- RuyssenCBKV Kortrijk · Pro League€600k
- NyssenRBZulte Waregem · Pro League€600k
- PavolettiCFCagliari Calcio · attackers€600k
- GhezzalRWOlympique Lyon · attackers€600k
- ManéRWKayserispor · attackers€600k
- CerriCFComo 1907 · attackers€600k
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).