Oleksandr
Martynyuk
LBUkraine · Metalist 1925 Kharkiv
Player dossierPremier Liha
OleksandrMartynyuk
LBLeft-BackDefender
- Club
- Metalist 1925 Kharkiv
- League
- Premier Liha
- Nationality
- Ukraine
- Age
- 24
- Height
- 175 cm
- Foot
- Left
- Valued
- 2 Jun 2026
Reading the valuation
The market values Martynyuk at €1.5M. Model A, which never saw Martynyuk during training, estimates €840k: the market value is 79% above that estimate.
That is a factor of ×1.79. Model A's typical held-out miss is ×1.50 either way, so this gap is larger than its usual error.
Without league and club, Model B estimates €1.5M, 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
- 51
- Minutes
- 4,211
- Goals
- 0
- Assists
- 2
- Started
- 47/51
- Min / app
- 83
- Cards
- 8Y 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 Martynyuk…
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 €1.5M
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 2,065 defenders
Dashed ring: the defender median (50th percentile)
Starts
Share of appearances started rather than entered from the bench.
92% this player83% defender median76th 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
- €100k
- Aug 2020
- Peak
- €2M
- Jun 2025
- Model target
- €1.5M
- Jun 2026
- Valuations
- 15
- 2 club changes
Jun 2026: €1.5M, Metalist 1925 Kharkiv. Dotted lines mark the €2M, €10M and €30M tier boundaries.
Show as a table
| Date | Market value | Club |
|---|---|---|
| 2020-08-18 | €100k | Volyn Lutsk |
| 2020-12-05 | €75k | Volyn Lutsk |
| 2021-06-17 | €125k | Volyn Lutsk |
| 2021-12-06 | €100k | Volyn Lutsk |
| 2022-05-18 | €100k | Volyn Lutsk |
| 2022-12-06 | €100k | FC Oleksandriya |
| 2023-06-21 | €100k | FC Oleksandriya |
| 2023-12-11 | €200k | FC Oleksandriya |
| 2024-06-06 | €500k | FC Oleksandriya |
| 2024-12-17 | €900k | FC Oleksandriya |
| 2025-03-21 | €1M | FC Oleksandriya |
| 2025-06-10 | €2M | FC Oleksandriya |
| 2025-12-18 | €1.8M | Metalist 1925 Kharkiv |
| 2026-03-23 | €1.5M | Metalist 1925 Kharkiv |
| 2026-06-02 | €1.5M | Metalist 1925 Kharkiv |
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
- +0.580
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 →Premier Liha414 players · median €400k
Valued above 84% of the 414 Premier Liha players.
See them in the Explorer →Defenders, all leagues2,065 players · median €2M
Valued above 43% of the 2,065 defenders.
See them in the Explorer →Where Martynyuk appears
Watchlists and the comparison tray are kept in this browser only.
Near this valuation closest observed values: same league, then same position
- ChobotenkoCBPolissya Zhytomyr · Premier Liha€1.5M
- BilovarCBDynamo Kyiv · Premier Liha€1.5M
- GhramCBShakhtar Donetsk · Premier Liha€1.5M
- JurcecRBKryvbas Kryvyi Rig · Premier Liha€1.5M
- TraunerCBFeyenoord Rotterdam · defenders€1.5M
- KüblerRBSC Freiburg · defenders€1.5M
- WalkerRBBurnley FC · defenders€1.5M
- TrippierRBNewcastle United · defenders€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).