1980-1981

Casement Celtic make their mark this season by taking Premier  league Honours with St. Mary’s in the Runners-Up spot. Murphy Cup triump over Tramore Athletic.  St. Mary’s carve their name on the A.O.H. Cup for a record sixth time with Barry Cup Finalists.

1981-1982

Winners of the Premier League.

Winners of the Coca-Cola Cup over Sprinfield.

St. Mary’s lose St. Michael’s Cup to Ballincollig.

1982-1983

Premier League Champions over Tramore Athletic

Murphy Cup winners over Ballinlough Rovers by 2-1.  Twomey and Hayes were Saints goalscorers.

1983-1984

St Mary’s fail to figure in the honours list this season

1984-1985

Temple United record their first Premier League Championship Title win.  St. Mary’s win St. Michael’s Cup v Douglas Hall and overcome Temple United in Cork area F.A.I Junior Cup.

Coca Cola Cup for Springfield v St. Mary’s.

1985-1986

Premier League Champions v Douglas Hall.

St. Mary’s youths capture Munster Youths Cup v St. Michael’s (Tipperary) by 4-2

1986-1987

St. Mary’s are Winners Youth Division One v Ballincollig.

Ger Long is acclaimed Player of the year in The Cork Schoolboy’s League.  St. Mary’s are admitted to the Munster Senior League .

Keane Cup Finalists.

1987-1988

St. Mary’s lose Youths Division One title to Tramore Athletic but win the Coca Cola Cup v Carrigaline Utd.  St. Mary’s win Division Two.

Beamish Cup Victors. Qualifiers F.A.I. Cup.

Winners Pop Keller Cup

McFaul Cup Winners.

1988-1989

St. Mary’s win their first Senior Crown. First Division Champions and promotion  to the Premier Division.  Beamish Cup and Pop Keller Cup victories see the Saints scale new heights in their third season of Senior Soccer. McFaul Cup victory.

1989-1990

Cobh Ramblers take the Youths Cup with a win over St Mary’s.  St. Mary’s Seniors take The Beamish Cup with a 1-0 win over Everton.