A nivel de clubes, March ganó la Premier League Sub-21 con el Brighton en 2014. Aunque no ha conseguido títulos importantes con el primer equipo, su lealtad y regularidad lo han convertido en un referente del club.
Solly March es un extremo derecho inglés nacido en Eastbourne que ha desarrollado toda su carrera profesional en el Brighton & Hove Albion. Debutó en el primer equipo en 2013 y desde entonces se ha consolidado como un jugador clave en el club, contribuyendo a su ascenso y permanencia en la Premier League. Con más de 200 partidos con el Brighton, es considerado un símbolo del club.
March es un extremo rápido y habilidoso, con buena capacidad para desbordar por la banda y centrar al área. Su principal fortaleza es su velocidad y su capacidad para jugar en ambos costados, aunque su falta de gol y consistencia en la definición son sus puntos débiles. Tácticamente, es un jugador trabajador que ayuda en labores defensivas y se adapta bien a sistemas ofensivos.
| Season | Comp | Apps | G | A | YC | RC | Min |
|---|---|---|---|---|---|---|---|
| 25/26 | Premier League 2 | 1 | 0 | 0 | 0 | 0 | 45 |
| 25/26 | Premier League | 4 | 0 | 0 | 0 | 0 | 38 |
| 25/26 | FA Cup | 0 | 0 | 0 | 0 | 0 | 0 |
| 25/26 | EFL Cup | 0 | 0 | 0 | 0 | 0 | 0 |
| 24/25 | Premier League 2 | 1 | 0 | 0 | 0 | 0 | 26 |
| 24/25 | Premier League | 8 | 0 | 0 | 2 | 0 | 163 |
| 24/25 | FA Cup | 2 | 1 | 1 | 0 | 0 | 49 |
| 24/25 | EFL Cup | 0 | 0 | 0 | 0 | 0 | 0 |
| 23/24 | Premier League | 7 | 3 | 1 | 1 | 0 | 559 |
| 23/24 | FA Cup | 0 | 0 | 0 | 0 | 0 | 0 |
| 23/24 | UEFA Europa League | 2 | 0 | 0 | 0 | 0 | 167 |
| 23/24 | EFL Cup | 1 | 0 | 0 | 0 | 0 | 45 |
| 22/23 | Premier League | 33 | 7 | 9 | 2 | 0 | 2727 |
| 22/23 | FA Cup | 4 | 1 | 1 | 0 | 0 | 390 |
| 22/23 | EFL Cup | 2 | 0 | 0 | 0 | 0 | 135 |
| 21/22 | Premier League | 31 | 0 | 2 | 1 | 0 | 1740 |
| 21/22 | FA Cup | 2 | 0 | 0 | 0 | 0 | 181 |
| 21/22 | EFL Cup | 0 | 0 | 0 | 0 | 0 | 0 |
| 20/21 | Premier League | 21 | 2 | 1 | 0 | 0 | 1674 |
| 20/21 | FA Cup | 2 | 1 | 0 | 0 | 0 | 119 |
| 20/21 | EFL Cup | 0 | 0 | 0 | 0 | 0 | 0 |
| 19/20 | Premier League 2 | 1 | 0 | 0 | 0 | 0 | 45 |
| 19/20 | Premier League | 19 | 0 | 1 | 2 | 0 | 1146 |
| 19/20 | FA Cup | 0 | 0 | 0 | 0 | 0 | 0 |
| 19/20 | EFL Cup | 0 | 0 | 0 | 0 | 0 | 0 |
| 18/19 | Premier League | 35 | 1 | 5 | 1 | 0 | 2473 |
| 18/19 | FA Cup | 2 | 1 | 0 | 0 | 0 | 70 |
| 18/19 | EFL Cup | 0 | 0 | 0 | 0 | 0 | 0 |
| 17/18 | Premier League | 36 | 1 | 1 | 3 | 0 | 1843 |
| 17/18 | FA Cup | 3 | 0 | 0 | 0 | 0 | 248 |
| 17/18 | EFL Cup | 1 | 0 | 0 | 0 | 0 | 16 |
| 16/17 | EFL Trophy | 1 | 0 | 0 | 0 | 0 | 90 |
| 16/17 | Premier League 2 | 6 | 1 | 1 | 0 | 0 | 423 |
| 16/17 | Championship | 25 | 3 | 3 | 0 | 0 | 1062 |
| 16/17 | International Friendlies | 1 | 1 | 0 | 0 | 0 | 61 |
| 16/17 | FA Cup | 2 | 0 | 0 | 0 | 0 | 180 |
| 16/17 | EFL Cup | 0 | 0 | 0 | 0 | 0 | 0 |
| 16/17 | Premier League Cup | 0 | 0 | 0 | 0 | 0 | 0 |
| 15/16 | UEFA European Under-21 Championship Qualifying | 1 | 0 | 0 | 0 | 0 | 58 |
| 15/16 | Championship Play-Offs | 0 | 0 | 0 | 0 | 0 | 0 |
| 15/16 | Premier League 2 | 1 | 1 | 0 | 0 | 0 | 90 |
| 15/16 | Championship | 16 | 3 | 2 | 4 | 0 | 1142 |
| 15/16 | International Friendlies | 1 | 0 | 0 | 0 | 0 | 29 |
| 15/16 | FA Cup | 0 | 0 | 0 | 0 | 0 | 0 |
| 15/16 | EFL Cup | 1 | 0 | 0 | 0 | 0 | 90 |
| 14/15 | Championship | 11 | 1 | 1 | 0 | 0 | 449 |
| 14/15 | FA Cup | 2 | 0 | 1 | 0 | 0 | 117 |
| 14/15 | EFL Cup | 0 | 0 | 0 | 0 | 0 | 0 |
| 13/14 | UEFA European Under-21 Championship Qualifying | 0 | 0 | 0 | 0 | 0 | 0 |
| 13/14 | Championship Play-Offs | 1 | 0 | 0 | 0 | 0 | 20 |
| 13/14 | Championship | 23 | 0 | 2 | 2 | 0 | 757 |
| 13/14 | International Friendlies | 0 | 0 | 0 | 0 | 0 | 0 |
| 13/14 | FA Cup | 4 | 1 | 0 | 0 | 0 | 235 |
| 13/14 | EFL Cup | 0 | 0 | 0 | 0 | 0 | 0 |
| 12/13 | Championship Play-Offs | 0 | 0 | 0 | 0 | 0 | 0 |
| 12/13 | Championship | 0 | 0 | 0 | 0 | 0 | 0 |
| 12/13 | FA Cup | 0 | 0 | 0 | 0 | 0 | 0 |