FairValue

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  • EnvironmentOverviewWhat FairValue measures, what it found, where to go next.
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  • TerminalMarket LandscapeHow observed value is distributed, and where the model drifts.

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Macaulay

Tait

CMScotland · Livingston FC

№ 909254Emerging €312k +0.47

Player dossierPremiership

MacaulayTait

CMCentral MidfieldMidfield

Club
Livingston FC
League
Premiership
Nationality
Scotland
Age
20
Height
170 cm
Foot
Left
Valued
20 May 2026

Reading the valuation

The market values Tait at €500k. Model A, which never saw Tait during training, estimates €312k: the market value is 60% above that estimate.

That is a factor of ×1.60. 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 €1.7M, 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.

▲ +0.47A €312k▼ −1.20B €1.7M
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
31
Minutes
2,407
Goals
0
Assists
3
Started
29/31
Min / app
78
Cards
7Y 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 Tait…

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 €312k

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 1,687 midfielders

Macaulay Tait's percentiles among midfielders: Goals per 90 10th, Assists per 90 57th, Minutes, two years 46th, Starts 91st, Minutes, last 365 days 72nd, European club minutes 30th10thGoals57thAssists46thMinutes91stStarts72ndRecent30thEurope

Dashed ring: the midfielder median (50th percentile)

Starts

Share of appearances started rather than entered from the bench.

94% this player69% midfielder median91st percentile

7%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 2023
Peak
€500k
May 2026
Model target
€500k
May 2026
Valuations
8
1 club change
May 2026€500kLivingston FCValuation the model is trained to reproduce

May 2026: €500k, Livingston FC. Dotted lines mark the €2M, €10M and €30M tier boundaries.

Show as a table
DateMarket valueClub
2023-09-22€50kHeart of Midlothian FC
2023-12-05€50kHeart of Midlothian FC
2024-03-20€100kHeart of Midlothian FC
2024-05-30€200kHeart of Midlothian FC
2024-12-03€200kHeart of Midlothian FC
2025-10-08€300kLivingston FC
2025-12-10€400kLivingston FC
2026-05-20€500kLivingston FC

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
+0.471

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

Valued above 55% of the 311 Premiership players.

€20k€150k€1M€7.5M€500kSee them in the Explorer →

Midfielders, all leagues1,687 players · median €2M

Valued above 16% of the 1,687 midfielders.

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

Where Tait 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).