Jens Martin Gammelby

31 yrs · Right-back (also CB, RM) · Denmark
Silkeborg IF · Superliga · Foot: both · Height: 192 cm
Risk: ModerateConfidence: MediumSample: HighDevelopment: LowContract: until 30 Jun 2028
Market value
€350k
Updated 7 days ago
Estimated acquisition
€68k – €355k
Estimated · 20–80% range
Model value
€267k – €592k
Performance-implied · estimated
Projected (24m)
€207k – €349k
Resale range · estimated
Potential value gap
-€88k – €524k
Model value − acquisition

Value picture

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

Estimated acquisition€68k – €355k
Model value (performance-implied)€267k – €592k
Projected value (24 months)€207k – €349k
Dashed line: current market value (€350k). Bars are 20–80% model ranges; tick = median.

The model rates Jens Martin Gammelby's performance-implied value at EUR 0.3M-0.6M, above the estimated acquisition range of EUR 0.1M-0.4M. Its 24-month market value projection is EUR 0.2M-0.3M. Confidence is medium: no event-level data (xG, progressive actions) is available from the current free source, and injury history is unavailable.

Bargain Index: 94

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

PerformanceBelow average15.9th pct among DEF peers (age-neutral)
AgeUnfavorable31.4 years
Acquisition costVery favorableest. €159k vs market €350k
Expected appreciationLow-12% over ~2 years (model)
Value gapVery largeweak predictor on its own
DevelopmentLow
League translationUncertainleague coefficient 0.47
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: €800k

Profile vs positional peers

Percentiles among 1268 evaluated DEF players with 900+ minutes.

Performance (last season, league)

Minutes
1980 (100% of available)
Goals + assists / 90
0.14
Context-adjusted G+A / 90
0.14
xG, xA, progression
Data unavailable
Defensive actions
Data unavailable
Performance percentile
16 (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
0.47 (rank 12)
Team strength (Elo)
1213
Opponent strength
1271
Possession, role
Data unavailable

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

Potential

Development
Low
Trajectory
insufficient
Breakout probability
Age > 23
Resale range (24m)
€207k – €349k

Historical comparables (8): median 2-year value change -20% (IQR -35% to -13%).

Risk profile

Overall: Moderate

  • ⚠League level coefficient 0.47 (1.00 = big-five average): output may not translate.
  • ⚠Age 31: resale value typically declines.
  • ⓘ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
24 (DEF)
Relative output kept
60%–139%
Held a regular role (900+ min)
71%
Confidence
Medium

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.
2025/26Silkeborg IFSuperligaRB221980100%300.140.14127112130.47
2024/25Silkeborg IFSuperligaRB930816%110.580.20126612640.38
2023/24Silkeborg IFSuperligaRB5482%000.000.18137512380.48
2022/23Bröndby IFSuperligaRB1056128%110.320.16127913290.47
2020/21Lyngby BoldklubSuperligaRB17118460%410.380.32128811640.43
2019/20Bröndby IFSuperligaRM1185537%000.000.14124513260.41
2018/19Bröndby IFSuperligaRB858825%000.000.06127513640.44
2017/18Silkeborg IFSuperligaRB262340100%530.310.25129611830.47
2016/17Silkeborg IFSuperligaRB262340100%210.120.16132511880.48
2014/15Silkeborg IFSuperligaCB29224676%000.000.03138610970.48

Cups & continental competitions

SeasonCompetitionClubAppsMinGAAvg opp. Elo
2025/26Uefa Conference League QualifyingSilkeborg IF4314111378
2025/26Oddset PokalenSilkeborg IF327001—
2024/25Oddset PokalenSilkeborg IF654030—
2024/25Uefa Conference League QualifyingSilkeborg IF246001439
2023/24Oddset PokalenSilkeborg IF318100—
2022/23Oddset PokalenBröndby IF19000—
2020/21Oddset PokalenLyngby Boldklub212200—
2019/20Uefa Europa League QualifyingBröndby IF3189001390
2019/20Oddset PokalenBröndby IF112000—
2018/19Oddset PokalenBröndby IF318200—
2018/19Uefa Europa League QualifyingBröndby IF2101001374
2017/18Oddset PokalenSilkeborg IF543600—
2016/17Oddset PokalenSilkeborg IF321100—
2014/15Oddset PokalenSilkeborg IF330000—

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
Pavol Farkas
Super League 1 · 2017
32€200k€150kfell
Björn Kopplin
Superliga · 2020
31€325k€300kflat
James McPake
Scottish Premiership · 2015
31€350k€300kflat
Darren McGregor
Scottish Premiership · 2014
29€350k€300kflat
Nikolai Alho
Super League 1 · 2023
30€500k€300kfell
Timothy Derijck
Jupiler Pro League · 2021
34€400k€150kfell
Kevin Conboy
Superliga · 2019
32€300k€200kfell
Jacob Une
Super League 1 · 2023
29€750k€700kflat

Transfer history

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

DateFromToFeeMV at time
1 Jan 2024HamKamSilkeborg IF€100k€400k
8 Mar 2023Bröndby IFHamKamUnknown€500k
29 Aug 2022Miedz LegnicaBröndby IFFree / loan€500k
21 Jan 2022Bröndby IFMiedz LegnicaFree / loan€500k
30 Jun 2021Lyngby BKBröndby IFFree / loan€500k
5 Oct 2020Bröndby IFLyngby BKFree / loan€600k
1 Jul 2018Silkeborg IFBröndby IF€1.5M€700k
1 Jul 2015Silkeborg U19Silkeborg IFUnknown€350k
1 Jul 2012Silkeborg Yth.Silkeborg U19UnknownData 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.