FairValue

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

Fraser

RBScotland · St. Mirren FC

№ 132203Emerging €158k +0.46

Player dossierPremiership

MarcusFraser

RBRight-BackDefender

Club
St. Mirren FC
League
Premiership
Nationality
Scotland
Age
31
Height
182 cm
Foot
Right
Valued
20 May 2026

Reading the valuation

The market values Fraser at €250k. Model A, which never saw Fraser during training, estimates €158k: the market value is 59% above that estimate.

That is a factor of ×1.59. 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 €905k, 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.

▲ +0.46A €158k▼ −1.29B €905k
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
69
Minutes
6,083
Goals
1
Assists
4
Started
68/69
Min / app
88
Cards
14Y 1R

Club matches, two years to the valuation date

The Valuation Journey

What moves Model A

Asking the prediction API to explain Model A for Fraser…

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 €158k

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

Marcus Fraser's percentiles among defenders: Goals per 90 37th, Assists per 90 63rd, Minutes, two years 93rd, Starts 94th, Minutes, last 365 days 77th, European club minutes 67th37thGoals63rdAssists93rdMinutes94thStarts77thRecent67thEurope

Dashed ring: the defender median (50th percentile)

Starts

Share of appearances started rather than entered from the bench.

99% this player83% defender median94th 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
Oct 2014
Peak
€500k
Dec 2023
Model target
€250k
May 2026
Valuations
22
2 club changes
May 2026€250kSt. Mirren FCValuation the model is trained to reproduce

May 2026: €250k, St. Mirren FC. Dotted lines mark the €2M, €10M and €30M tier boundaries.

Show as a table
DateMarket valueClub
2014-10-01€50kCowdenbeath FC
2015-12-01€250kRoss County FC
2017-02-14€275kRoss County FC
2018-03-04€350kRoss County FC
2018-08-06€350kRoss County FC
2019-01-03€350kRoss County FC
2019-06-23€400kRoss County FC
2020-02-05€450kRoss County FC
2020-04-08€350kRoss County FC
2021-01-18€325kSt. Mirren FC
2021-06-28€450kSt. Mirren FC
2021-12-31€400kSt. Mirren FC
2022-06-27€400kSt. Mirren FC
2022-12-13€450kSt. Mirren FC
2023-06-26€450kSt. Mirren FC
2023-12-05€500kSt. Mirren FC
2024-05-30€500kSt. Mirren FC
2024-12-03€400kSt. Mirren FC
2025-06-17€400kSt. Mirren FC
2025-12-10€350kSt. Mirren FC
2026-03-05€300kSt. Mirren FC
2026-05-20€250kSt. Mirren 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
+0.462

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 32% of the 311 Premiership players.

€20k€150k€1M€7.5M€250kSee them in the Explorer →

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

Valued above 7% of the 2,065 defenders.

€20k€200k€2M€20M€250kSee them in the Explorer →

Where Fraser 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).