
Aarón Martín
Value picture
Where the market, the likely price and the model estimates sit.
The model rates Aarón Martín's performance-implied value at EUR 4.2M-9.6M, above the estimated acquisition range of EUR 1.4M-3.9M. Its 24-month market value projection is EUR 1.5M-3.8M. Context-adjusted goal contributions are 1.50x the positional average in the league (2161 minutes, league coefficient 0.93). Confidence is medium: no event-level data (xG, progressive actions) is available from the current free source, and injury history is unavailable.
Acquisition note: Final year of contract: selling club's leverage is reduced.
Bargain Index: 46
What drives the score. Not a black box: each component and its level.
| Performance | High | 77.1th pct among MID peers (age-neutral) |
| Age | Unfavorable | 29.2 years |
| Acquisition cost | Very favorable | est. €1.9M vs market €5.0M |
| Expected appreciation | Very low | -52% over ~2 years (model) |
| Value gap | Very large | weak predictor on its own |
| Development | Low | |
| League translation | Big-five league | league coefficient 0.93 |
| Tactical fit | Not evaluated | Requires event/role data not available from the current free source. |
| Risk | Moderate | |
| 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 1163 evaluated MID players with 900+ minutes.
Performance (last season, league)
- Minutes
- 2161 (63% of available)
- Goals + assists / 90
- 0.25
- Context-adjusted G+A / 90
- 0.34
- xG, xA, progression
- Data unavailable
- Defensive actions
- Data unavailable
- Performance percentile
- 77 (High)
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
- 0.93 (rank 4)
- Team strength (Elo)
- 1407
- Opponent strength
- 1494
- 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)
- €1.5M – €3.8M
Trajectory drivers: minutes share down 27 pts; role change LB -> LM.
Historical comparables (8): median 2-year value change -52% (IQR -71% to -49%).
Risk profile
Overall: Moderate
- ⚠Contract ends in 12 months: cheaper, but competition and wage demands likely.
- ⚠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).
Already playing in a big-five league.
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 | Genoa CFC | Serie A | LM | 33 | 2161 | 63% | 1 | 5 | 0.25 | 0.34 | 1494 | 1406 | 0.93 |
| 2024/25 | Genoa CFC | Serie A | LB | 36 | 3088 | 90% | 0 | 8 | 0.23 | 0.19 | 1492 | 1444 | 0.99 |
| 2023/24 | Genoa CFC | Serie A | LM | 22 | 1381 | 40% | 0 | 1 | 0.07 | 0.18 | 1541 | 1445 | 0.98 |
| 2022/23 | 1.FSV Mainz 05 | Bundesliga | LM | 28 | 1846 | 60% | 5 | 3 | 0.39 | 0.32 | 1538 | 1496 | 1.04 |
| 2021/22 | 1.FSV Mainz 05 | Bundesliga | LM | 28 | 2296 | 75% | 1 | 1 | 0.08 | 0.13 | 1524 | 1507 | 1.05 |
| 2020/21 | Celta de Vigo | Laliga | LB | 19 | 1541 | 45% | 0 | 3 | 0.18 | 0.19 | 1575 | 1535 | 1.10 |
| 2020/21 | 1.FSV Mainz 05 | Bundesliga | LM | 5 | 261 | 9% | 0 | 0 | 0.00 | 0.18 | 1418 | 1481 | 1.06 |
| 2019/20 | 1.FSV Mainz 05 | Bundesliga | LB | 22 | 1795 | 59% | 0 | 0 | 0.00 | 0.04 | 1553 | 1471 | 1.06 |
| 2018/19 | 1.FSV Mainz 05 | Bundesliga | LB | 33 | 2879 | 94% | 0 | 5 | 0.16 | 0.13 | 1513 | 1488 | 1.05 |
| 2017/18 | RCD Espanyol Barcelona | Laliga | LB | 32 | 2815 | 82% | 0 | 0 | 0.00 | 0.04 | 1553 | 1523 | 1.11 |
| 2016/17 | RCD Espanyol Barcelona | Laliga | LB | 30 | 2587 | 76% | 0 | 0 | 0.00 | 0.03 | 1556 | 1520 | 1.11 |
Cups & continental competitions
| Season | Competition | Club | Apps | Min | G | A | Avg opp. Elo |
|---|---|---|---|---|---|---|---|
| 2025/26 | Italy Cup | Genoa CFC | 2 | 180 | 0 | 1 | — |
| 2024/25 | Italy Cup | Genoa CFC | 2 | 145 | 0 | 0 | — |
| 2023/24 | Italy Cup | Genoa CFC | 2 | 169 | 0 | 0 | — |
| 2022/23 | Dfb Pokal | 1.FSV Mainz 05 | 3 | 225 | 0 | 0 | — |
| 2021/22 | Dfb Pokal | 1.FSV Mainz 05 | 3 | 179 | 0 | 0 | — |
| 2020/21 | Copa Del Rey | Celta de Vigo | 1 | 90 | 0 | 0 | — |
| 2019/20 | Dfb Pokal | 1.FSV Mainz 05 | 1 | 90 | 0 | 0 | — |
| 2018/19 | Dfb Pokal | 1.FSV Mainz 05 | 1 | 90 | 0 | 0 | — |
| 2017/18 | Copa Del Rey | RCD Espanyol Barcelona | 3 | 178 | 0 | 0 | — |
| 2016/17 | Copa Del Rey | RCD Espanyol Barcelona | 1 | 24 | 0 | 0 | — |
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 |
|---|---|---|---|---|
| Jonas Martin Ligue 1 · 2019 | 29 | €5.0M | €2.5M | fell |
| Sergi Darder Laliga · 2024 | 31 | €6.0M | €3.0M | fell |
| Julian Schuster Bundesliga · 2014 | 29 | €3.0M | €700k | fell |
| Lucas Deaux Ligue 1 · 2018 | 30 | €2.5M | €1.4M | fell |
| Teddy Teuma Ligue 1 · 2024 | 31 | €7.0M | €1.8M | fell |
| Lucas Castro Serie A · 2018 | 29 | €7.0M | €3.2M | fell |
| Erick Pulgar Serie A · 2021 | 27 | €9.0M | €5.0M | fell |
| Luca Cigarini Serie A · 2016 | 30 | €5.0M | €1.5M | fell |
Transfer history
Fees as reported by the source; undisclosed fees shown as unknown, never estimated.
| Date | From | To | Fee | MV at time |
|---|---|---|---|---|
| 3 Jul 2023 | Mainz | Genoa | Free / loan | €7.0M |
| 30 Jun 2021 | Celta de Vigo | Mainz | Free / loan | €4.5M |
| 4 Jan 2021 | Mainz | Celta de Vigo | Free / loan | €4.5M |
| 1 Jul 2019 | Espanyol | Mainz | €8.0M | €20.0M |
| 30 Jun 2019 | Mainz | Espanyol | Free / loan | €20.0M |
| 6 Aug 2018 | Espanyol | Mainz | Free / loan | €12.0M |
| 19 Sept 2016 | RCD Espanyol B | Espanyol | Unknown | €300k |
| 1 Jul 2015 | Espanyol U19 | RCD Espanyol B | Unknown | Data unavailable |
| 1 Jul 2013 | Espanyol Youth | Espanyol U19 | Unknown | 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.