Valeriy
Bondarenko
CBUkraine · Kolos Kovalivka
Player dossierPremier Liha
ValeriyBondarenko
CBCentre-BackDefender
- Club
- Kolos Kovalivka
- League
- Premier Liha
- Nationality
- Ukraine
- Age
- 32
- Height
- 194 cm
- Foot
- Right
- Valued
- 2 Jun 2026
Reading the valuation
The market values Bondarenko at €250k. Model A, which never saw Bondarenko during training, estimates €254k: the market value is 2% below that estimate.
That is a factor of ×1.02. 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 €698k, 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
- 3,175
- Goals
- 0
- Assists
- 0
- Started
- 35/40
- Min / app
- 79
- 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 Bondarenko…
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 €250k
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.
88% this player83% defender median62nd 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
- €200k
- Jun 2017
- Peak
- €1M
- Mar 2019
- Model target
- €250k
- Jun 2026
- Valuations
- 22
- 7 club changes
Jun 2026: €250k, Kolos Kovalivka. Dotted lines mark the €2M, €10M and €30M tier boundaries.
Show as a table
| Date | Market value | Club |
|---|---|---|
| 2017-06-26 | €200k | FC Oleksandriya |
| 2018-01-12 | €400k | FC Oleksandriya |
| 2018-08-06 | €500k | FC Oleksandriya |
| 2018-12-10 | €700k | FC Oleksandriya |
| 2019-03-22 | €1M | Shakhtar Donetsk |
| 2019-06-20 | €1M | Shakhtar Donetsk |
| 2019-12-30 | €1M | Vitória Guimarães SC |
| 2020-04-08 | €800k | Vitória Guimarães SC |
| 2020-09-04 | €600k | Shakhtar Donetsk |
| 2021-01-14 | €500k | FC Oleksandriya |
| 2021-06-07 | €600k | FC Oleksandriya |
| 2021-12-20 | €500k | Vorskla Poltava |
| 2022-05-18 | €500k | FC Oleksandriya |
| 2022-12-06 | €500k | FC Oleksandriya |
| 2023-06-21 | €500k | FC Oleksandriya |
| 2023-12-11 | €600k | Kolos Kovalivka |
| 2024-06-06 | €600k | Kolos Kovalivka |
| 2024-12-17 | €600k | Kolos Kovalivka |
| 2025-03-21 | €400k | Kolos Kovalivka |
| 2025-06-10 | €350k | Kolos Kovalivka |
| 2025-12-18 | €300k | Kolos Kovalivka |
| 2026-06-02 | €250k | Kolos Kovalivka |
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
- −0.017
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 17% of the 414 Premier Liha players.
See them in the Explorer →Defenders, all leagues2,065 players · median €2M
Valued above 7% of the 2,065 defenders.
See them in the Explorer →Where Bondarenko appears
Watchlists and the comparison tray are kept in this browser only.
Near this valuation closest observed values: same league, then same position
- PalamarchukGKLNZ Cherkasy · Premier Liha€250k
- RakitskyiCBChornomorets Odesa · Premier Liha€250k
- BabenkoCMPolissya Zhytomyr · Premier Liha€250k
- BoryachukCFEpicentr Kamyanets-Podilskyi · Premier Liha€250k
- AanholtLBSparta Rotterdam · defenders€250k
- PintoRBFortuna Sittard · defenders€250k
- MladenCBPanetolikos · defenders€250k
- PetrovRBFC Krasnodar · defenders€250k
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).