Portslade St.Nicholas Old Boys F.C. founded 1947.
1947 Joined Brighton Hove & District Minor League
1949 Joined Worthing Leagues
1954/55 Worthing League Div 2 Champions
1957/58 Worthing Croshaw Cup Winners
** 1964/65 Re-named Portslade Athletic FC **
1966/67 Worthing League Div 1 Champions
1968/69 Worthing Croshaw Cup Winners
1969/70 Worthing League Champions,
Vernon Wentworth Cup Winners,
Croshaw Cup Winners
1970/71 Joined Brighton League
1970/71 Brighton League Div 2 Champions
1971/72 Brighton League Premier Division Runners Up
1973/74 Intermediate Cup Winners
1976/77 Intermediate Cup Winners
1977/78 Intermediate Cup Winners
1984/85 Div 3&4 K.O. Cup Winners
1985/86 Intermediate Cup Winners
1992/93 College Cup Winners
2003-04 Brighton League Div 1 Champions
2006-07 Brighton League Div 1 Runners up