Auston
Trusty
CBUnited States · Celtic FC
Player dossierPremiership
AustonTrusty
CBCentre-BackDefender
- Club
- Celtic FC
- League
- Premiership
- Nationality
- United States
- Age
- 27
- Height
- 190 cm
- Foot
- Left
- Valued
- 20 May 2026
PremiershipReading the valuation
The market values Trusty at €6M. Model A, which never saw Trusty during training, estimates €4.6M: the market value is 32% above that estimate.
That is a factor of ×1.32. 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 €10M, 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
- 66
- Minutes
- 5,584
- Goals
- 4
- Assists
- 1
- Started
- 61/66
- Min / app
- 85
- Cards
- 3Y 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 Trusty…
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 €6M
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)
European club minutes
Share of minutes played in UEFA club competitions.
26% this player0% defender median91st 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
- €150k
- Dec 2016
- Peak
- €10M
- Jun 2023
- Model target
- €6M
- May 2026
- Valuations
- 27
- 6 club changes
May 2026: €6M, Celtic FC. Dotted lines mark the €2M, €10M and €30M tier boundaries.
Show as a table
| Date | Market value | Club |
|---|---|---|
| 2016-12-15 | €150k | Bethlehem Steel FC |
| 2017-07-17 | €150k | Bethlehem Steel FC |
| 2017-12-05 | €175k | Philadelphia Union |
| 2018-05-02 | €500k | Philadelphia Union |
| 2018-12-15 | €800k | Philadelphia Union |
| 2019-05-27 | €1.3M | Philadelphia Union |
| 2020-02-28 | €1.3M | Colorado Rapids |
| 2020-04-08 | €1.1M | Colorado Rapids |
| 2020-08-26 | €1.5M | Colorado Rapids |
| 2020-12-18 | €1.5M | Colorado Rapids |
| 2021-07-09 | €2M | Colorado Rapids |
| 2021-11-09 | €2M | Colorado Rapids |
| 2022-07-29 | €1.8M | Birmingham City |
| 2022-09-14 | €2.2M | Birmingham City |
| 2022-10-27 | €3M | Birmingham City |
| 2023-03-24 | €9M | Birmingham City |
| 2023-06-01 | €10M | Arsenal FC |
| 2023-10-09 | €8M | Sheffield United |
| 2023-12-19 | €8M | Sheffield United |
| 2024-05-27 | €7M | Sheffield United |
| 2024-12-03 | €8M | Celtic FC |
| 2025-03-12 | €7.5M | Celtic FC |
| 2025-06-17 | €6M | Celtic FC |
| 2025-10-08 | €5M | Celtic FC |
| 2025-12-10 | €5M | Celtic FC |
| 2026-03-05 | €6M | Celtic FC |
| 2026-05-20 | €6M | Celtic 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
- +0.275
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 94% of the 311 Premiership players.
See them in the Explorer →Defenders, all leagues2,065 players · median €2M
Valued above 73% of the 2,065 defenders.
See them in the Explorer →Where Trusty appears
Watchlists and the comparison tray are kept in this browser only.
Near this valuation closest observed values: same league, then same position
- OlsenRWRangers FC · Premiership€6M
- GassamaLWRangers FC · Premiership€6M
- DjigaCBRangers FC · Premiership€6M
- DiomandéCMRangers FC · Premiership€7M
- RüdigerCBReal Madrid · defenders€6M
- DigneLBAston Villa · defenders€6M
- RomagnoliCBSS Lazio · defenders€6M
- PoschCB1.FSV Mainz 05 · defenders€6M
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).