[2][3] During their time in the Hellenic Football League, the club participated in the FA Vase each season; their furthest runs in the competition involved reaching the Second Round on two occasions in 1998–99 and 1999–2000.
[3] The club achieved immediate promotion from the new division after a fourth-place finish and subsequent play-off win, defeating Burnham in the semi-final and Taunton Town in the final.
[3] Their best run in the FA Cup came in the 2010–11 season when they reached the Second Round proper where they lost at League One side Colchester United.
[3][7] Swindon Supermarine reached the third round proper (last sixteen) of the FA Trophy, their furthest run in the competition, on three occasions in 2008–09, 2020–21 and 2022–23.
[3] The table below details their achievements in first-team competitions for each completed season since their first appearance in the Hellenic Football League Premier Division in 1992–93.