Mert Günok
Value picture
Where the market, the likely price and the model estimates sit.
The model rates Mert Günok's performance-implied value at EUR 0.1M-0.4M, below the estimated acquisition range of EUR 0.1M-0.6M. Its 24-month market value projection is EUR 0.1M-0.5M. Confidence is medium: no event-level data (xG, progressive actions) is available from the current free source, and injury history is unavailable.
Bargain Index: not assigned
What drives the score. Not a black box: each component and its level.
Age above 33 (outside validated pool)
| Performance | Average | 53.7th pct among GK peers (age-neutral) |
| Age | Unfavorable | 37.3 years |
| Acquisition cost | Very favorable | est. €303k vs market €500k |
| Expected appreciation | Very low | -39% over ~2 years (model) |
| Value gap | Negative | weak predictor on its own |
| Development | Low | |
| League translation | Uncertain | league coefficient 0.4 |
| Tactical fit | Not evaluated | Requires event/role data not available from the current free source. |
| Risk | Very High | |
| Data confidence | Medium |
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.
Profile vs positional peers
Percentiles among 284 evaluated GK players with 900+ minutes.
Performance (last season, league)
- Minutes
- 1105 (36% of available)
- Goals + assists / 90
- 0.00
- Context-adjusted G+A / 90
- 0.00
- xG, xA, progression
- Data unavailable
- Defensive actions
- Data unavailable
- Performance percentile
- 54 (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
- 0.40 (rank 18)
- Team strength (Elo)
- 1394
- Opponent strength
- 1256
- Possession, role
- Data unavailable
League strength 1.00 = average club of the big-five leagues. Elo includes continental matches.
Potential
- Development
- Low
- Trajectory
- declining
- Breakout probability
- Age > 23
- Resale range (24m)
- €125k – €492k
Trajectory drivers: minutes share down 58 pts.
Historical comparables (8): median 2-year value change -47% (IQR -70% to -35%).
Risk profile
Overall: Very High
- ▲Age 37: resale value typically declines.
- ▲Projection range among the widest 10% of evaluated players.
- ⚠Limited sample: 1105 league minutes last season.
- ⚠League level coefficient 0.40 (1.00 = big-five average): output may not translate.
- ⚠Played under 40% of available league minutes (injury data unavailable, cause unknown).
- ⚠Declining trajectory versus previous 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
- 138 (all positions)
- Relative output kept
- 76%–145%
- Held a regular role (900+ min)
- 59%
- 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.
| Season | Club | League | Pos | Apps | Min | Min share | G | A | G+A/90 | Adj. G+A/90 | Opp. Elo | Team Elo | League str. |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2025/26 | Beşiktaş Jimnastik Kulübü | Super Lig | GK | 8 | 720 | 24% | 0 | 0 | 0.00 | 0.00 | 1256 | 1350 | 0.40 |
| 2025/26 | Fenerbahce | Super Lig | GK | 5 | 385 | 13% | 0 | 0 | 0.00 | 0.00 | 1255 | 1477 | 0.40 |
| 2024/25 | Beşiktaş Jimnastik Kulübü | Super Lig | GK | 34 | 3060 | 94% | 0 | 0 | 0.00 | 0.00 | 1274 | 1340 | 0.39 |
| 2023/24 | Beşiktaş Jimnastik Kulübü | Super Lig | GK | 30 | 2544 | 74% | 0 | 0 | 0.00 | 0.00 | 1297 | 1336 | 0.45 |
| 2022/23 | Beşiktaş Jimnastik Kulübü | Super Lig | GK | 23 | 2070 | 64% | 0 | 0 | 0.00 | 0.00 | 1292 | 1517 | 0.50 |
| 2021/22 | Beşiktaş Jimnastik Kulübü | Super Lig | GK | 4 | 360 | 11% | 0 | 0 | 0.00 | 0.00 | 1196 | 1342 | 0.42 |
| 2020/21 | Basaksehir FK | Super Lig | GK | 21 | 1890 | 53% | 0 | 0 | 0.00 | 0.00 | 1273 | 1266 | 0.37 |
| 2019/20 | Basaksehir FK | Super Lig | GK | 33 | 2970 | 97% | 0 | 1 | 0.03 | 0.01 | 1338 | 1462 | 0.45 |
| 2018/19 | Basaksehir FK | Super Lig | GK | 34 | 3056 | 100% | 0 | 0 | 0.00 | 0.00 | 1374 | 1494 | 0.58 |
| 2015/16 | Bursaspor | Super Lig | GK | 20 | 1800 | 59% | 0 | 0 | 0.00 | 0.00 | 1402 | 1365 | 0.64 |
| 2014/15 | Fenerbahce | Super Lig | GK | 9 | 786 | 26% | 0 | 0 | 0.00 | 0.00 | 1388 | 1612 | 0.72 |
| 2013/14 | Fenerbahce | Super Lig | GK | 5 | 450 | 15% | 0 | 0 | 0.00 | 0.00 | 1435 | 1592 | 0.78 |
| 2012/13 | Fenerbahce | Super Lig | GK | 6 | 540 | 18% | 0 | 0 | 0.00 | 0.00 | 1358 | 1591 | 0.89 |
Cups & continental competitions
| Season | Competition | Club | Apps | Min | G | A | Avg opp. Elo |
|---|---|---|---|---|---|---|---|
| 2025/26 | Uefa Conference League Qualifying | Beşiktaş Jimnastik Kulübü | 3 | 270 | 0 | 0 | 1289 |
| 2025/26 | Uefa Europa League Qualifying | Beşiktaş Jimnastik Kulübü | 2 | 180 | 0 | 0 | 1423 |
| 2024/25 | Uefa Europa League | Beşiktaş Jimnastik Kulübü | 5 | 450 | 0 | 0 | 1509 |
| 2024/25 | Uefa Europa League Qualifying | Beşiktaş Jimnastik Kulübü | 2 | 180 | 0 | 0 | 1377 |
| 2023/24 | Uefa Conference League Qualifying | Beşiktaş Jimnastik Kulübü | 6 | 540 | 0 | 0 | 1336 |
| 2021/22 | Uefa Champions League | Beşiktaş Jimnastik Kulübü | 1 | 90 | 0 | 0 | 1749 |
| 2020/21 | Uefa Champions League | Basaksehir FK | 6 | 540 | 0 | 0 | 1730 |
| 2019/20 | Uefa Europa League | Basaksehir FK | 10 | 930 | 0 | 0 | 1538 |
| 2019/20 | Uefa Champions League Qualifying | Basaksehir FK | 2 | 180 | 0 | 0 | 1573 |
| 2018/19 | Uefa Europa League Qualifying | Basaksehir FK | 2 | 210 | 0 | 0 | 1515 |
| 2017/18 | Uefa Europa League | Basaksehir FK | 4 | 360 | 0 | 0 | 1538 |
| 2012/13 | Uefa Champions League Qualifying | Fenerbahce | 2 | 180 | 0 | 0 | 1492 |
| 2012/13 | Uefa Europa League | Fenerbahce | 1 | 90 | 0 | 0 | 1479 |
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) | Age | Value then | ~2y later | Outcome |
|---|---|---|---|---|
| Jamie Langfield Scottish Premiership · 2015 | 36 | €350k | €200k | fell |
| Alan Mannus Scottish Premiership · 2017 | 35 | €400k | €300k | fell |
| Anton Shunin Premier Liga · 2024 | 37 | €400k | €400k | flat |
| Marafona Super Lig · 2022 | 35 | €250k | €75k | fell |
| Luigi Cennamo Super League 1 · 2015 | 35 | €300k | €150k | fell |
| Jamie MacDonald Scottish Premiership · 2019 | 33 | €400k | €250k | fell |
| Boubacar Copa Jupiler Pro League · 2015 | 36 | €700k | €150k | fell |
| Luke Steele Super League 1 · 2017 | 33 | €500k | €150k | fell |
Transfer history
Fees as reported by the source; undisclosed fees shown as unknown, never estimated.
| Date | From | To | Fee | MV at time |
|---|---|---|---|---|
| 6 Jan 2026 | Besiktas | Fenerbahçe | Free / loan | €500k |
| 15 Aug 2021 | Basaksehir | Besiktas | €1.3M | €2.4M |
| 1 Aug 2017 | Bursaspor | Basaksehir | Free / loan | €1.0M |
| 1 Jul 2015 | Fenerbahçe | Bursaspor | Free / loan | €2.2M |
| 1 Jul 2009 | Fenerbahce U21 | Fenerbahçe | Unknown | €100k |
| 1 Jul 2006 | Fenerbahce Yth. | Fenerbahce U21 | Unknown | Data unavailable |
| 12 Feb 2001 | Kocaelispor Yth | Fenerbahce Yth. | Free / loan | Data 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.