Colby Donovan

20 yrs · Right-back · Scotland
Celtic FC · Scottish Premiership · Foot: right · Height: 186 cm
Risk: Very HighConfidence: LowSample: LowDevelopment: Very HighContract: Data unavailable
Market value
€1.5M
Updated 7 days ago
Estimated acquisition
€1.3M – €6.0M
Estimated · 20–80% range
Model value
€501k – €1.5M
Performance-implied · estimated
Projected (24m)
€1.1M – €6.6M
Resale range · estimated
Potential value gap
-€5.5M – €259k
Model value − acquisition

Value picture

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

Estimated acquisition€1.3M – €6.0M
Model value (performance-implied)€501k – €1.5M
Projected value (24 months)€1.1M – €6.6M
Dashed line: current market value (€1.5M). Bars are 20–80% model ranges; tick = median.

The model rates Colby Donovan's performance-implied value at EUR 0.5M-1.5M, below the estimated acquisition range of EUR 1.3M-6.0M. Its 24-month market value projection is EUR 1.1M-6.6M. Confidence is low: no event-level data (xG, progressive actions) is available from the current free source, and injury history is unavailable.

Acquisition note: Contract end date unavailable: range widened by 15% each side.

Bargain Index: not assigned

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

Insufficient sample (< 900 league minutes)

PerformanceAverage37.5th pct among DEF peers (age-neutral)
AgeVery favorable19.8 years
Acquisition costVery unfavorableest. €2.4M vs market €1.5M
Expected appreciationVery high+95% over ~2 years (model)
Value gapVery negativeweak predictor on its own
DevelopmentVery Highbreakout probability 41%
League translationUncertainleague coefficient 0.31
Tactical fitNot evaluatedRequires event/role data not available from the current free source.
RiskVery High
Data confidenceLow

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: €1.5M

Profile vs positional peers

Percentiles among 1269 evaluated DEF players with 900+ minutes.

Performance (last season, league)

Minutes
618 (21% of available)
Goals + assists / 90
0.29
Context-adjusted G+A / 90
0.14
xG, xA, progression
Data unavailable
Defensive actions
Data unavailable
Performance percentile
38 (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)
1406
Opponent strength
1195
Possession, role
Data unavailable

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

Potential

Development
Very High
Trajectory
insufficient
Breakout probability
41%
Resale range (24m)
€1.1M – €6.6M

Historical comparables (8): median 2-year value change +10% (IQR -21% to +144%).

Risk profile

Overall: Very High

  • ▲Small sample: 618 league minutes last season.
  • ▲League level coefficient 0.31 (1.00 = big-five average): output may not translate.
  • ▲Projection range among the widest 10% of evaluated players.
  • ⚠Played under 40% of available league minutes (injury data unavailable, cause unknown).
  • ⓘContract end date unavailable (or stale in source).
  • ⓘ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
16 (DEF)
Relative output kept
90%–275%
Held a regular role (900+ min)
75%
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.
2025/26Celtic FCScottish PremiershipRB1461821%020.290.14119514060.31

Cups & continental competitions

SeasonCompetitionClubAppsMinGAAvg opp. Elo
2025/26Uefa Europa LeagueCeltic FC8550011493
2025/26Scottish Fa CupCeltic FC210501—
2025/26Uefa Champions League QualifyingCeltic FC114001438

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
Rıdvan Yılmaz
Super Lig · 2021
20€2.0M€4.5Mrose
Ahmetcan Kaplan
Super Lig · 2022
19€2.8M€10.0Mrose
Lefteris Lyratzis
Super League 1 · 2022
22€1.5M€1.2Mfell
Tristan Gooijer
Eredivisie · 2024
20€2.0M€1.5Mfell
Serdar Saatçı
Super Lig · 2022
19€1.6M€5.0Mrose
Dexter Lembikisa
Scottish Premiership · 2024
21€3.0M€800kfell
Adam Tzanetopoulos
Super League 1 · 2016
21€1.0M€800kfell
Enea Mihaj
Super League 1 · 2022
24€1.0M€1.5Mrose

Transfer history

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

DateFromToFeeMV at time
1 Jul 2025Celtic BCelticUnknownData unavailable
1 Jul 2024Celtic U18Celtic BUnknownData 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.