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…

Ryan

McGowan

CBAustralia · Livingston FC

№ 54265Emerging €39k −0.44

Player dossierPremiership

RyanMcGowan

CBCentre-BackDefender

Club
Livingston FC
League
Premiership
Nationality
Australia
Age
36
Height
191 cm
Foot
Right
Valued
20 May 2026

Reading the valuation

The market values McGowan at €25k. Model A, which never saw McGowan during training, estimates €39k: the market value is 36% below that estimate.

That is a factor of ×1.56. Model A's typical held-out miss is ×1.50 either way, so this gap is larger than its usual error.

Without league and club, Model B estimates €158k, 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.

▼ −0.44A €39k▼ −1.85B €158k
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
1,800
Goals
0
Assists
1
Started
19/22
Min / app
82
Cards
4Y 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 McGowan…

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 €25k

Checking API
EmergingEstablishedEliteWorld Class€2M€10M€30M€100k€1M€100MMarket €25kModel A €39k

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

Ryan McGowan's percentiles among defenders: Goals per 90 18th, Assists per 90 57th, Minutes, two years 29th, Starts 59th, Minutes, last 365 days 54th, European club minutes 30th18thGoals57thAssists29thMinutes59thStarts54thRecent30thEurope

Dashed ring: the defender median (50th percentile)

Starts

Share of appearances started rather than entered from the bench.

86% this player83% defender median59th 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
Nov 2007
Peak
€900k
Sept 2013
Model target
€25k
May 2026
Valuations
37
14 club changes
May 2026€25kLivingston FCValuation the model is trained to reproduce

May 2026: €25k, Livingston FC. Dotted lines mark the €2M, €10M and €30M tier boundaries.

Show as a table
DateMarket valueClub
2007-11-19€50kHeart of Midlothian FC U20
2008-10-27€100kHeart of Midlothian FC
2010-01-18€250kAyr United FC
2010-10-22€250kHeart of Midlothian FC
2011-02-03€200kPartick Thistle FC
2011-07-11€200kHeart of Midlothian FC
2012-02-06€400kHeart of Midlothian FC
2012-07-23€500kHeart of Midlothian FC
2013-02-15€650kShandong Luneng Taishan
2013-07-22€800kShandong Luneng Taishan
2013-07-25€825kShandong Luneng Taishan
2013-08-19€850kShandong Luneng Taishan
2013-09-16€900kShandong Luneng Taishan
2014-04-03€700kShandong Luneng Taishan
2014-07-07€900kShandong Luneng Taishan
2014-11-04€800kShandong Luneng Taishan
2015-12-07€500kDundee United FC
2016-06-20€500kHenan Jianye
2016-11-20€450kHenan Jianye
2017-03-05€400kGuizhou Hengfeng Zhicheng
2017-06-19€400kGuizhou Hengfeng Zhicheng
2017-12-11€400kSharjah FC
2019-09-11€400kSydney FC
2020-04-08€325kSydney FC
2020-10-08€400kSydney FC
2021-03-30€400kSydney FC
2021-12-30€400kKuwait SC
2022-09-06€400kSt. Johnstone FC
2022-12-13€400kSt. Johnstone FC
2023-06-26€350kSt. Johnstone FC
2023-12-05€250kSt. Johnstone FC
2024-05-30€200kSt. Johnstone FC
2024-10-04€150kLivingston FC
2024-12-03€125kLivingston FC
2025-06-17€75kLivingston FC
2025-12-10€50kLivingston FC
2026-05-20€25kLivingston FC

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
−0.444

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 →

Premiership311 players · median €400k

The joint lowest observed value among 311 Premiership players.

€20k€150k€1M€7.5M€25kSee them in the Explorer →

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

The joint lowest observed value among 2,065 defenders.

€20k€200k€2M€20M€25kSee them in the Explorer →

Where McGowan 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).