Aarón Martín
Aarón Martín, 29, from Spain ➤ Racing Santander, since 2026 ➤ Left-Back ➤ Market value: €5.00m ➤ * 22/04/1997 in Montmeló, Spain

Info
Biographical card, current club and contract facts. Empty fields mean the source did not publish that value.
Statistics
Career totals from Transfermarkt: this season, then by competition and by club. Minutes and cards appear when the source recorded them.
This season
| Season | Competition | Apps | Min | G | A | YC | RC |
|---|---|---|---|---|---|---|---|
| 26/27 | LaLiga | 1 | 1 | 0 | 0 | 0 | 0 |
| 26/27 | Serie A | 0 | 0 | 0 | 0 | 0 | 0 |
| 26/27 | Italy Cup | 0 | 0 | 0 | 0 | 0 | 0 |
By competition
| Competition | Apps | G | A |
|---|---|---|---|
| Bundesliga | 116 | 6 | 9 |
| Serie A | 91 | 1 | 14 |
| LaLiga | 82 | 0 | 3 |
| 2ª B - Grupo III | 36 | 1 | 0 |
| DFB-Pokal | 8 | 0 | 0 |
| Italy Cup | 6 | 0 | 1 |
| Copa del Rey | 5 | 0 | 0 |
By club
| Club | Apps | G | A |
|---|---|---|---|
| Mainz | 124 | 6 | 9 |
| Genoa | 97 | 1 | 15 |
| Espanyol | 66 | 0 | 0 |
| RCD Espanyol B | 36 | 1 | 0 |
| Celta de Vigo | 20 | 0 | 3 |
| Racing | 1 | 0 | 0 |
Transfers
Recorded moves between clubs, with fee and market value on the day of the deal when the source has them.
| Date | Season | From | To | Fee | Market value |
|---|---|---|---|---|---|
| 01/09/2026 | 26/27 | Genoa | Racing | €2.00m | €5.00m |
| 03/07/2023 | 23/24 | Mainz | Genoa | free transfer | €7.00m |
| 30/06/2021 | 20/21 | Celta de Vigo | Mainz | End of loan | €4.50m |
| 04/01/2021 | 20/21 | Mainz | Celta de Vigo | loan transfer | €4.50m |
| 01/07/2019 | 19/20 | Espanyol | Mainz | €8.00m | €20.00m |
| 30/06/2019 | 18/19 | Mainz | Espanyol | End of loan | €20.00m |
| 06/08/2018 | 18/19 | Espanyol | Mainz | Loan fee:<br /><i class="normaler-text">€3.00m</i> | €12.00m |
| 19/09/2016 | 16/17 | RCD Espanyol B | Espanyol | - | €300k |
| 01/07/2015 | 15/16 | Espanyol U19 | RCD Espanyol B | - | - |
| 01/07/2013 | 13/14 | Espanyol Youth | Espanyol U19 | - | - |
National
Senior and youth national-team spells: caps, goals, shirt number and whether the player is still in the current pool.
| Team | Caps | Goals | Shirt | Debut | Status |
|---|---|---|---|---|---|
| Spain U21 | 12 | 0 | 3 | 2017-09-01 | Former international |
| Spain U17 | 5 | 0 | 5 | 2013-09-12 | Former international |
| Spain U19 | 18 | 2 | 5 | 2014-11-13 | Former international |
| Spain U16 | 1 | 0 | 0 | 2013-03-05 | Former international |
Market value
Current and peak Transfermarkt valuations, plus the history of changes by club and age. Rankings are relative to the current squad, league and position group.
- Current
- €5.00m
- Highest
- €20.00m · 22/03/2018
- Last change
- 29/05/2026
| Date | Age | Club | Value |
|---|---|---|---|
| 01/08/2016 | 19 | RCD Espanyol B | €300k |
| 27/10/2016 | 19 | RCD Espanyol Barcelona | €500k |
| 24/01/2017 | 19 | RCD Espanyol Barcelona | €3.00m |
| 29/03/2017 | 19 | RCD Espanyol Barcelona | €6.00m |
| 05/06/2017 | 20 | RCD Espanyol Barcelona | €10.00m |
| 01/01/2018 | 20 | RCD Espanyol Barcelona | €15.00m |
| 22/03/2018 | 20 | RCD Espanyol Barcelona | €20.00m |
| 30/05/2018 | 21 | RCD Espanyol Barcelona | €12.00m |
| 22/08/2018 | 21 | 1.FSV Mainz 05 | €10.00m |
| 18/12/2018 | 21 | 1.FSV Mainz 05 | €12.00m |
| 06/03/2019 | 21 | 1.FSV Mainz 05 | €16.00m |
| 05/06/2019 | 22 | 1.FSV Mainz 05 | €20.00m |
| 17/12/2019 | 22 | 1.FSV Mainz 05 | €16.00m |
| 11/03/2020 | 22 | 1.FSV Mainz 05 | €13.00m |
| 08/04/2020 | 22 | 1.FSV Mainz 05 | €10.50m |
| 16/09/2020 | 23 | 1.FSV Mainz 05 | €7.00m |
| 26/11/2020 | 23 | 1.FSV Mainz 05 | €4.50m |
| 05/01/2021 | 23 | Celta de Vigo | €3.00m |
| 10/06/2021 | 24 | Celta de Vigo | €4.50m |
| 22/12/2021 | 24 | 1.FSV Mainz 05 | €5.00m |
| 09/06/2022 | 25 | 1.FSV Mainz 05 | €5.00m |
| 09/11/2022 | 25 | 1.FSV Mainz 05 | €7.00m |
| 22/06/2023 | 26 | 1.FSV Mainz 05 | €7.00m |
| 20/12/2023 | 26 | Genoa CFC | €5.00m |
| 05/06/2024 | 27 | Genoa CFC | €5.00m |
| 18/12/2024 | 27 | Genoa CFC | €5.00m |
| 25/03/2025 | 27 | Genoa CFC | €6.50m |
| 17/06/2025 | 28 | Genoa CFC | €6.50m |
| 23/12/2025 | 28 | Genoa CFC | €7.00m |
| 29/05/2026 | 29 | Genoa CFC | €5.00m |
xG Statistics
Aarón Martín's xG Statistics block is an Understat shot model for the 2026 season. It does not replace goals and assists — it explains them. xG and xA ask whether the chances were good enough; xGChain and xGBuildup show how often the player was on the ball in moves that became shots. Use minutes as the denominator: a large xG in 80 minutes is a hot streak, the same xG over 1,200 minutes is a role. Figures are rounded to two decimals and stay empty when Understat has no match for this player.
| Season | League | Club | Apps | Min | G | xG | npxG | A | xA | Sh | KP | xGChain |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026 | La liga | Racing Santander | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
What the columns mean
Read this table as chance quality, not as a scoreboard. A player can outscore xG (finishing well) or lag behind it (missed sitters). Compare rows only when minutes are in the same range.
Apps· Appearances- Matches in which the player was used in this league season, including substitute minutes.
Min· Minutes- Total minutes on the pitch. Useful when comparing output: 1 goal in 90 minutes is not the same as 1 goal in 800.
G· Goals- Goals credited to the player in the Understat shot model for that season.
xG· Expected goals- The quality of shots the player took, expressed as the number of goals an average finisher would score from the same chances. A 0.30 xG shot is a chance that goes in about 3 times in 10.
npxG· Non-penalty xG- Expected goals with penalties removed. This is the cleaner read of open-play and set-piece finishing, because a penalty is usually ~0.76 xG by itself.
A· Assists- Goals that followed the player's last pass. Actual assists, not the model.
xA· Expected assists- The xG value of shots that came directly from the player's key passes. High xA with few assists usually means teammates missed good chances.
Sh· Shots- Total shots recorded by Understat, including blocked and off-target attempts.
KP· Key passes- Passes that led to a shot. This is the volume behind xA.
xGChain· xG chain- Team xG from possessions the player touched. It captures involvement in build-up, not only the shot or the last pass. A midfielder who starts attacks can rank high here without scoring.
xGBuildup· xG buildup- The same possession xG, but excluding the shot-taker and the assist. This is the purest 'how much did this player help create the chance before the final ball' number.
NPG· Non-penalty goals- Goals scored from open play or set pieces, excluding penalties.







