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…

Franck

Honorat

RWFrance · Borussia Mönchengladbach

№ 229006Established €6.5M +0.07

Player dossierBundesliga

FranckHonorat

RWRight WingerAttack

Club
Borussia Mönchengladbach
League
Bundesliga
Nationality
France
Age
29
Height
180 cm
Foot
Right
Valued
27 May 2026

Reading the valuation

The market values Honorat at €7M. Model A, which never saw Honorat during training, estimates €6.5M: the market value is 7% above that estimate.

That is a factor of ×1.07. 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 €2.3M, 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.

▲ +0.07A €6.5M▲ +1.13B €2.3M
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
52
Minutes
3,855
Goals
7
Assists
18
Started
47/52
Min / app
74
Cards
0Y 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 Honorat…

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 €7M

Checking API
EmergingEstablishedEliteWorld Class€2M€10M€30M€100k€1M€100MMarket €7MModel A €6.5M

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

Franck Honorat's percentiles among attackers: Goals per 90 27th, Assists per 90 98th, Minutes, two years 79th, Starts 94th, Minutes, last 365 days 80th, European club minutes 28th27thGoals98thAssists79thMinutes94thStarts80thRecent28thEurope

Dashed ring: the attacker median (50th percentile)

Assists per 90

Club assists per 90 minutes in the same window.

0.42 this player0.15 attacker median98th percentile

0.00peer deciles · median line · this player ●0.73

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
€150k
Feb 2016
Peak
€12M
Dec 2023
Model target
€7M
May 2026
Valuations
26
5 club changes
May 2026€7MBorussia MönchengladbachValuation the model is trained to reproduce

May 2026: €7M, Borussia Mönchengladbach. Dotted lines mark the €2M, €10M and €30M tier boundaries.

Show as a table
DateMarket valueClub
2016-02-04€150kOGC Nice
2016-07-13€150kFC Sochaux-Montbéliard
2017-03-20€400kFC Sochaux-Montbéliard
2017-06-15€400kFC Sochaux-Montbéliard
2018-05-16€800kClermont Foot 63
2019-01-08€900kClermont Foot 63
2019-06-03€2MClermont Foot 63
2019-12-19€2MAS Saint-Étienne
2020-04-08€1.6MAS Saint-Étienne
2020-08-03€4MStade Brestois 29
2020-10-15€4MStade Brestois 29
2021-01-07€6MStade Brestois 29
2021-04-09€7MStade Brestois 29
2021-06-04€7MStade Brestois 29
2021-12-16€9MStade Brestois 29
2022-03-23€10MStade Brestois 29
2022-05-30€10MStade Brestois 29
2022-11-02€9MStade Brestois 29
2023-06-27€10MStade Brestois 29
2023-12-14€12MBorussia Mönchengladbach
2024-05-29€12MBorussia Mönchengladbach
2024-12-20€12MBorussia Mönchengladbach
2025-06-05€12MBorussia Mönchengladbach
2025-12-19€12MBorussia Mönchengladbach
2026-03-20€10MBorussia Mönchengladbach
2026-05-27€7MBorussia Mönchengladbach

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
+0.068

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 →

Bundesliga451 players · median €5M

Valued above 56% of the 451 Bundesliga players.

€300k€2M€15M€100M€7MSee them in the Explorer →

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

Valued above 70% of the 1,583 attackers.

€20k€300k€5M€75M€7MSee them in the Explorer →

Where Honorat 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).