FairValue

Checking model

Esc

  • EnvironmentOverviewWhat FairValue measures, what it found, where to go next.
  • EnvironmentTerminalExplore, compare and track players; market, league and model views.
  • EnvironmentStoriesValuations, head-to-heads and research findings, told as stories.
  • TerminalPlayer ExplorerSearch, filter and sort the player export.
  • TerminalComparison StudioTwo to four players on one scale.
  • TerminalWatchlistsNamed collections, kept in this browser.
  • TerminalMarket LandscapeHow observed value is distributed, and where the model drifts.

↑ ↓ to move · Enter to open · Esc to closeLoading player index…

Ragnar

Oratmangoen

LWIndonesia · FCV Dender EH

№ 410854Emerging €398k +0.23

Player dossierPro League

RagnarOratmangoen

LWLeft WingerAttack

Club
FCV Dender EH
League
Pro League
Nationality
Indonesia
Age
28
Height
181 cm
Foot
Right
Valued
4 Jun 2026

Reading the valuation

The market values Oratmangoen at €500k. Model A, which never saw Oratmangoen during training, estimates €398k: the market value is 26% above that estimate.

That is a factor of ×1.26. 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 €758k, 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.

▲ +0.23A €398k▼ −0.42B €758k
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
36
Minutes
1,515
Goals
2
Assists
0
Started
14/36
Min / app
42
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 Oratmangoen…

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 €398k

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

Ragnar Oratmangoen's percentiles among attackers: Goals per 90 17th, Assists per 90 6th, Minutes, two years 32nd, Starts 20th, Minutes, last 365 days 15th, European club minutes 28th17thGoals6thAssists32ndMinutes20thStarts15thRecent28thEurope

Dashed ring: the attacker median (50th percentile)

Minutes, two years

Total club minutes in the two-year window: how much the player was used.

1,515 this player2,242 attacker median32nd percentile

450peer deciles · median line · this player ●8,788

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
Jul 2016
Peak
€600k
Dec 2024
Model target
€500k
Jun 2026
Valuations
20
8 club changes
Jun 2026€500kFCV Dender EHValuation the model is trained to reproduce

Jun 2026: €500k, FCV Dender EH. Dotted lines mark the €2M, €10M and €30M tier boundaries.

Show as a table
DateMarket valueClub
2016-07-15€50kNEC Nijmegen U19
2018-03-01€75kFC Oss
2018-06-29€100kFC Oss
2019-01-21€200kTOP Oss
2019-07-03€300kNEC Nijmegen
2020-06-29€350kSC Cambuur Leeuwarden
2020-10-24€325kSC Cambuur Leeuwarden
2020-12-31€300kSC Cambuur Leeuwarden
2021-03-16€275kSC Cambuur Leeuwarden
2021-10-04€350kGo Ahead Eagles
2022-01-05€450kGo Ahead Eagles
2022-06-08€550kGo Ahead Eagles
2022-11-11€550kFC Groningen
2023-06-23€450kFC Groningen
2023-12-15€450kFortuna Sittard
2024-05-31€450kFortuna Sittard
2024-12-11€600kFCV Dender EH
2025-06-12€600kFCV Dender EH
2025-12-10€600kFCV Dender EH
2026-06-04€500kFCV Dender EH

Audit context group-level, not about this player

Audit group
non-UEFA
Population gap, Model A
+0.093 95% CI +0.063 to +0.124
This player, market vs held-out A
+0.228

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 9% of the 350 Pro League players.

€100k€750k€5M€30M€500kSee them in the Explorer →

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

Valued above 15% of the 1,583 attackers.

€20k€300k€5M€75M€500kSee them in the Explorer →

Where Oratmangoen 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).