Barry
Douglas
LBScotland · St. Johnstone FC
Player dossierPremiership
BarryDouglas
LBLeft-BackDefender
- Club
- St. Johnstone FC
- League
- Premiership
- Nationality
- Scotland
- Age
- 35
- Height
- 176 cm
- Foot
- Left
- Valued
- 17 Jun 2025
Reading the valuation
The market values Douglas at €50k. Model A, which never saw Douglas during training, estimates €47k: the market value is 6% above that estimate.
That is a factor of ×1.06. 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 €140k, 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.
- Apps
- 16
- Minutes
- 1,144
- Goals
- 0
- Assists
- 0
- Started
- 13/16
- Min / app
- 72
- Cards
- 2Y 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 Douglas…
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 €50k
Checking APIAsking 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
Dashed ring: the defender median (50th percentile)
Starts
Share of appearances started rather than entered from the bench.
81% this player83% defender median47th percentile
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
- Aug 2010
- Peak
- €3.5M
- Sept 2018
- Model target
- €50k
- Jun 2025
- Valuations
- 36
- 9 club changes
Jun 2025: €50k, St. Johnstone FC. Dotted lines mark the €2M, €10M and €30M tier boundaries.
Show as a table
| Date | Market value | Club |
|---|---|---|
| 2010-08-15 | €50k | Dundee United FC |
| 2011-02-03 | €250k | Dundee United FC |
| 2011-07-07 | €400k | Dundee United FC |
| 2012-02-02 | €350k | Dundee United FC |
| 2012-07-23 | €350k | Dundee United FC |
| 2013-02-14 | €300k | Dundee United FC |
| 2013-07-22 | €500k | Lech Poznan |
| 2014-02-14 | €550k | Lech Poznan |
| 2014-07-21 | €650k | Lech Poznan |
| 2015-03-05 | €550k | Lech Poznan |
| 2015-06-30 | €900k | Lech Poznan |
| 2016-01-10 | €750k | Lech Poznan |
| 2016-04-07 | €750k | Konyaspor |
| 2016-07-15 | €1M | Konyaspor |
| 2017-01-10 | €1.6M | Konyaspor |
| 2017-06-09 | €1.5M | Konyaspor |
| 2018-02-27 | €2M | Wolverhampton Wanderers |
| 2018-09-24 | €3.5M | Leeds United |
| 2019-06-28 | €3.5M | Leeds United |
| 2020-02-27 | €2.5M | Leeds United |
| 2020-04-08 | €2M | Leeds United |
| 2020-10-13 | €2M | Leeds United |
| 2021-03-10 | €1.8M | Blackburn Rovers |
| 2021-06-08 | €1.5M | Leeds United |
| 2021-10-15 | €1M | Lech Poznan |
| 2021-12-31 | €1M | Lech Poznan |
| 2022-04-07 | €800k | Lech Poznan |
| 2022-06-14 | €600k | Lech Poznan |
| 2022-09-29 | €500k | Lech Poznan |
| 2022-11-16 | €400k | Lech Poznan |
| 2023-06-09 | €350k | Lech Poznan |
| 2023-12-29 | €300k | Lech Poznan |
| 2024-06-07 | €250k | Lech Poznan |
| 2024-10-16 | €175k | Without Club |
| 2024-12-03 | €100k | St. Johnstone FC |
| 2025-06-17 | €50k | St. Johnstone 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
- +0.058
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 2% of the 311 Premiership players.
See them in the Explorer →Defenders, all leagues2,065 players · median €2M
Valued above 0% of the 2,065 defenders.
See them in the Explorer →Where Douglas appears
Watchlists and the comparison tray are kept in this browser only.
Near this valuation closest observed values: same league, then same position
- GordonGKHeart of Midlothian FC · Premiership€50k
- HoilettLWHibernian FC · Premiership€50k
- HallidayDMMotherwell FC · Premiership€50k
- McKenzieRWKilmarnock FC · Premiership€50k
- UtsievRBAkhmat Grozny · defenders€50k
- BotíaCBAE Kifisia · defenders€50k
- KöybaşıLBGöztepe · defenders€50k
- AlbornozLBVejle Boldklub · defenders€50k
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).