FairValue

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  • EnvironmentOverviewWhat FairValue measures, what it found, where to go next.
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Semen

Vovchenko

CBUkraine · NK Veres Rivne

№ 775830Emerging €525k −0.05

Player dossierPremier Liha

SemenVovchenko

CBCentre-BackDefender

Club
NK Veres Rivne
League
Premier Liha
Nationality
Ukraine
Age
26
Height
187 cm
Foot
Left
Valued
2 Jun 2026

Reading the valuation

The market values Vovchenko at €500k. Model A, which never saw Vovchenko during training, estimates €525k: the market value is 5% below that estimate.

That is a factor of ×1.05. 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 €1.4M, 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.

▼ −0.05A €525k▼ −1.03B €1.4M
Pitch length is a log value scale fitted to this player's figures. ● observed · ◇ Model A · dashed ◇ Model B · each arc is a residual, log(observed) − log(estimate).
Apps
51
Minutes
4,326
Goals
1
Assists
1
Started
47/51
Min / app
85
Cards
10Y 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 Vovchenko…

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 €500k

Checking API
EmergingEstablishedEliteWorld Class€2M€10M€30M€100k€1M€100MMarket €500kModel A €525k

Asking 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

Semen Vovchenko's percentiles among defenders: Goals per 90 41st, Assists per 90 38th, Minutes, two years 74th, Starts 76th, Minutes, last 365 days 44th, European club minutes 30th41stGoals38thAssists74thMinutes76thStarts44thRecent30thEurope

Dashed ring: the defender median (50th percentile)

Starts

Share of appearances started rather than entered from the bench.

92% this player83% defender median76th percentile

18%peer deciles · median line · this player ●100%

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
Sept 2020
Peak
€600k
Jun 2025
Model target
€500k
Jun 2026
Valuations
13
1 club change
Jun 2026€500kNK Veres RivneValuation the model is trained to reproduce

Jun 2026: €500k, NK Veres Rivne. Dotted lines mark the €2M, €10M and €30M tier boundaries.

Show as a table
DateMarket valueClub
2020-09-04€50kNyva Ternopil
2020-12-05€100kNyva Ternopil
2021-06-17€125kNyva Ternopil
2021-12-06€200kNyva Ternopil
2022-05-18€200kNyva Ternopil
2022-12-06€400kNK Veres Rivne
2023-06-21€400kNK Veres Rivne
2023-12-11€300kNK Veres Rivne
2024-06-06€300kNK Veres Rivne
2024-12-17€500kNK Veres Rivne
2025-06-10€600kNK Veres Rivne
2025-12-18€500kNK Veres Rivne
2026-06-02€500kNK Veres Rivne

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
−0.048

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 52% of the 414 Premier Liha players.

€50k€200k€1M€5M€500kSee them in the Explorer →

Defenders, all leagues2,065 players · median €2M

Valued above 19% of the 2,065 defenders.

€20k€200k€2M€20M€500kSee them in the Explorer →

Where Vovchenko appears

Watchlists and the comparison tray are kept in this browser only.

Near this valuation closest observed values: same league, then same position

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).