FairValue

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

O'Hara

GKIreland · Dundee FC

№ 289791Emerging €134k −0.29

Player dossierPremiership

KieranO'Hara

GKGoalkeeperGoalkeeper

Club
Dundee FC
League
Premiership
Nationality
Ireland
Age
30
Height
193 cm
Foot
Right
Valued
20 May 2026

Reading the valuation

The market values O'Hara at €100k. Model A, which never saw O'Hara during training, estimates €134k: the market value is 25% below that estimate.

That is a factor of ×1.34. 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 €633k, 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.

▼ −0.29A €134k▼ −1.85B €633k
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
18
Minutes
1,511
Started
15/18
Min / app
84
Cards
1Y 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 O'Hara…

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 €100k

Checking API
EmergingEstablishedEliteWorld Class€2M€10M€30M€100k€1M€100MMarket €100kModel A €134k

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 485 goalkeepers

Kieran O'Hara's percentiles among goalkeepers: Minutes, two years 30th, Starts 3rd, Minutes, last 365 days 2nd, European club minutes 75th30thMinutes3rdStarts2ndRecent75thEurope

Dashed ring: the goalkeeper median (50th percentile)

European club minutes

Share of minutes played in UEFA club competitions.

12% this player0% goalkeeper median75th percentile

0%peer deciles · median line · this player ●86%

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
Apr 2023
Peak
€150k
Apr 2023
Model target
€100k
May 2026
Valuations
8
2 club changes
May 2026€100kDundee FCValuation the model is trained to reproduce

May 2026: €100k, Dundee FC. Dotted lines mark the €2M, €10M and €30M tier boundaries.

Show as a table
DateMarket valueClub
2023-04-06€150kColchester United
2023-06-23€150kColchester United
2023-12-05€150kKilmarnock FC
2024-05-30€150kKilmarnock FC
2024-12-03€150kKilmarnock FC
2025-06-17€150kKilmarnock FC
2025-12-10€150kDundee FC
2026-05-20€100kDundee 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
−0.291

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 7% of the 311 Premiership players.

€20k€150k€1M€7.5M€100kSee them in the Explorer →

Goalkeepers, all leagues485 players · median €1M

Valued above 3% of the 485 goalkeepers.

€20k€200k€2M€20M€100kSee them in the Explorer →

Where O'Hara 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).