Callum Slattery

27 yrs · Central midfielder (also AM) · England
Motherwell FC · Scottish Premiership · Foot: right · Height: 180 cm
Risk: ModerateConfidence: MediumSample: HighDevelopment: LowContract: until 30 Jun 2029
Market value
€700k
Updated 6 days ago
Estimated acquisition
€281k – €681k
Estimated · 20–80% range
Model value
€605k – €1.1M
Performance-implied · estimated
Projected (24m)
€311k – €870k
Resale range · estimated
Potential value gap
-€76k – €855k
Model value − acquisition

Value picture

Where the market, the likely price and the model estimates sit.

Estimated acquisition€281k – €681k
Model value (performance-implied)€605k – €1.1M
Projected value (24 months)€311k – €870k
Dashed line: current market value (€700k). Bars are 20–80% model ranges; tick = median.

The model rates Callum Slattery's performance-implied value at EUR 0.6M-1.1M, above the estimated acquisition range of EUR 0.3M-0.7M. Its 24-month market value projection is EUR 0.3M-0.9M. Context-adjusted goal contributions are 1.22x the positional average in the league (1927 minutes, league coefficient 0.31). Confidence is medium: no event-level data (xG, progressive actions) is available from the current free source, and injury history is unavailable.

Bargain Index: 82

What drives the score. Not a black box: each component and its level.

PerformanceBelow average32.5th pct among MID peers (age-neutral)
AgeNeutral27.4 years
Acquisition costVery favorableest. €411k vs market €700k
Expected appreciationLow-17% over ~2 years (model)
Value gapVery largeweak predictor on its own
DevelopmentLow
League translationUncertainleague coefficient 0.31
Tactical fitNot evaluatedRequires event/role data not available from the current free source.
RiskModerate
Data confidenceMedium

Bargain Index = percentile (among all evaluated players) of expected 2-year value relative to estimated cost. See methodology and backtests.

Market value history

Market value ≠ transfer fee ≠ acquisition cost.

Highest recorded: €700k

Profile vs positional peers

Percentiles among 1163 evaluated MID players with 900+ minutes.

Performance (last season, league)

Minutes
1927 (65% of available)
Goals + assists / 90
0.51
Context-adjusted G+A / 90
0.49
xG, xA, progression
Data unavailable
Defensive actions
Data unavailable
Performance percentile
33 (Below average)

Adjusted = shrunk toward positional baseline for small samples, corrected for team dominance over opponents, expressed relative to positional peers in the same league.

Context

League strength
0.31 (rank 26)
Team strength (Elo)
1245
Opponent strength
1213
Possession, role
Data unavailable

League strength 1.00 = average club of the big-five leagues. Elo includes continental matches.

Potential

Development
Low
Trajectory
improving
Breakout probability
Age > 23
Resale range (24m)
€311k – €870k

Trajectory drivers: minutes share up 45 pts; team strength up (+124 Elo); role change CM -> AM; relative output down 43% vs positional peers.

Historical comparables (8): median 2-year value change -23% (IQR -29% to +0%).

Risk profile

Overall: Moderate

  • ▲League level coefficient 0.31 (1.00 = big-five average): output may not translate.
  • ⚠No continental-competition minutes last season.
  • ⓘInjury history unavailable from current data source.

League translation

What happened to players who moved from this league to the big-five leagues (observed, not a forecast).

Historical movers
10 (MID)
Relative output kept
77%–107%
Held a regular role (900+ min)
80%
Confidence
Low

Output is relative to positional peers in each league. Movers are a selected group (clubs buy players who fit), so treat this as context, not a guarantee.

Season-by-season (domestic league)

Context-adjusted values are model outputs.

SeasonClubLeaguePosAppsMinMin shareGAG+A/90Adj. G+A/90Opp. EloTeam EloLeague str.
2025/26Motherwell FCScottish PremiershipAM26192765%380.510.49121312450.31
2024/25Motherwell FCScottish PremiershipCM1060220%410.750.46121411210.34
2023/24Motherwell FCScottish PremiershipCM20156953%100.060.12126811790.34
2022/23Motherwell FCScottish PremiershipCM26177260%420.300.35132812020.40
2021/22Motherwell FCScottish PremiershipCM26199167%200.090.16133712430.50

Cups & continental competitions

SeasonCompetitionClubAppsMinGAAvg opp. Elo
2025/26Scottish Fa CupMotherwell FC213500—
2024/25Scottish Fa CupMotherwell FC12200—
2022/23Uefa Conference League QualifyingMotherwell FC2180001291
2022/23Scottish Fa CupMotherwell FC218000—
2021/22Scottish Fa CupMotherwell FC11400—

Small continental samples are shown for context only and are not over-weighted.

Historical comparables

Most similar profiles 2+ years ago (same position group) and what happened next. Chosen by similarity only — failures included.

Player (then)AgeValue then~2y laterOutcome
Orest Kuzyk
Premier Liga · 2023
28€500k€300kfell
Sean Kelly
Scottish Premiership · 2023
30€400k€100kfell
Arnaud Djoum
Scottish Premiership · 2016
27€500k€800krose
Brad Lyons
Scottish Premiership · 2024
27€350k€350kflat
Kyriakos Kivrakidis
Super League 1 · 2021
29€400k€300kfell
Vladyslav Klymenko
Premier Liga · 2023
29€400k€300kfell
Dmytro Klyots
Premier Liga · 2023
27€500k€400kfell
Javier Mendoza
Super League 1 · 2022
30€400k€400kflat

Transfer history

Fees as reported by the source; undisclosed fees shown as unknown, never estimated.

DateFromToFeeMV at time
1 Jul 2026Motherwell FCWithout ClubUnknown€700k
24 Jul 2021Southampt. U23Motherwell FCUnknown€50k
31 May 2021GillinghamSouthampt. U23Free / loan€50k
14 Jan 2021Southampt. U23GillinghamFree / loan€50k
30 Jun 2020De GraafschapSouthampt. U23Free / loan€50k
31 Jan 2020Southampt. U23De GraafschapFree / loanData unavailable
1 Jul 2016Southampton U18Southampt. U23UnknownData unavailable
1 Jul 2015Southampton AcaSouthampton U18UnknownData unavailable

MoneyballAI identifies statistical opportunities from available data. A player flagged as a potential bargain is not guaranteed to succeed, to transfer, to rise in value, or to generate resale profit. Market values, fees and contracts come from third-party sources; ranges are model estimates with stated confidence.

Callum Slattery · MoneyballAI