FairValue

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

Kyslenko

CFUkraine · Ingulets Petrove

№ 552418Emerging €210k +0.18

Player dossierPremier Liha

SergiyKyslenko

CFCentre-ForwardAttack

Club
Ingulets Petrove
League
Premier Liha
Nationality
Ukraine
Age
27
Height
187 cm
Foot
Left
Valued
18 Dec 2025

Reading the valuation

The market values Kyslenko at €250k. Model A, which never saw Kyslenko during training, estimates €210k: the market value is 19% above that estimate.

That is a factor of ×1.19. 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 €440k, 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.

▲ +0.18A €210k▼ −0.57B €440k
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
22
Minutes
1,101
Goals
1
Assists
1
Started
11/22
Min / app
50
Cards
2Y 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 Kyslenko…

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 API
EmergingEstablishedEliteWorld Class€2M€10M€30M€100k€1M€100MMarket €250kModel A €210k

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 1,583 attackers

Sergiy Kyslenko's percentiles among attackers: Goals per 90 11th, Assists per 90 25th, Minutes, two years 22nd, Starts 35th, Minutes, last 365 days 13th, European club minutes 28th11thGoals25thAssists22ndMinutes35thStarts13thRecent28thEurope

Dashed ring: the attacker median (50th percentile)

Starts

Share of appearances started rather than entered from the bench.

50% this player59% attacker median35th percentile

5%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
€100k
Dec 2018
Peak
€250k
Dec 2021
Model target
€250k
Dec 2025
Valuations
13
3 club changes
Dec 2025€250kIngulets PetroveValuation the model is trained to reproduce

Dec 2025: €250k, Ingulets Petrove. Dotted lines mark the €2M, €10M and €30M tier boundaries.

Show as a table
DateMarket valueClub
2018-12-10€100kPFC Lviv II
2020-10-05€75kNyva Ternopil
2020-12-05€100kNyva Ternopil
2021-06-17€150kNyva Ternopil
2021-12-06€250kNyva Ternopil
2022-05-18€250kPolissya Zhytomyr
2022-12-06€200kPolissya Zhytomyr
2023-06-21€150kPolissya Zhytomyr
2024-09-12€100kIngulets Petrove
2024-12-17€200kIngulets Petrove
2025-03-21€250kIngulets Petrove
2025-06-10€250kIngulets Petrove
2025-12-18€250kIngulets Petrove

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
+0.176

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.

€50k€200k€1M€5M€250kSee them in the Explorer →

Attackers, all leagues1,583 players · median €2.5M

Valued above 6% of the 1,583 attackers.

€20k€300k€5M€75M€250kSee them in the Explorer →

Where Kyslenko 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).