Mangalore continued to participate in the Southern Amateurs, winning the one premiership title (in 1985 when they also took out the State Amateur title) until the competition collapsed following the completion of the 1995 season whereby a replacement competition, the STFL (now known as the SFL) was formed and from the 1996 season they were one of eight founding clubs of the competition, continuing participation to the present day.

Note that in the 1940s and early 1950s there was a club named Brighton (no relation, and wore Hawks colours) that fielded a team in the Southern Districts Football Association while Mangalore (the current Brighton) won the South-Eastern Districts premierships in 1954 and 1955.

Success has proved elusive for the Robins since their early days in the Southern Football League, losing semi-finalists in 1996 and 1997 before winning their first and so far only premiership title in 1998.

Brighton's last grand final appearance was in 1999 under playing coach Byron Howard when they were defeated by former TFL club, Hobart by 51-points at Huonville Recreation Ground on 11 September 1999.

Brighton have competed in various competitions including: ● Brighton FA: 1922–1931 ● Richmond FA: 1933–1934 ● South Eastern District FA: 1952–1979 ● Tasman FA: 1980 ● Tasmanian Amateur FL (Southern Division): 1981–1995 Entry to Southern Football League ● 1996 SEDFA Premierships ● 1954, 1955, 1956, 1957, 1959, 1965, 1968, 1970, 1971, 1972, 1977, 1979 TAFL Southern Division Premierships ● 1985 State Amateur Premierships ● 1985 SFL/SFL Premier League Premierships ● 1998 SFL/SFL Premier League Runners-Up ● 1999 William Leitch Medalists: ● 2023 – Darcy Gardner Peter Hodgman Medalists ● 2000 – Brendon Browning Club Record Games Holder ● 270 – Leigh Gray Club Record Attendance ● 3,896 v Hobart on 11 September 1999 – SFL Grand Final at Huonville Recreation Ground Club Record Score ● Unknown