Ray Treacy Rovers fans when his penalty against Sligo helped win the FAI Cup in 1978. Treacy almost scored a hat trick for the Republic of Ireland national football team against Turkey in April 1978. The two goals he scored (along with the game's opening goal by Johnny Giles) represent the last occasion that a home-based player has scored for the senior Irish national team until 40 years later when in June 2018, Graham Burke, also a Shamrock Rovers player, scored against the United States. Treacy represented the League of Ireland in a friendly against Argentina in the Boca Junior Stadium in
Jim Treacy O'Halloran gave Cork a merited 3–9 to 1–10 victory over an Eddie Keher-inspired Kilkenny. In 1967 Treacy was appointed captain of the Kilkenny team. It was another successful year as the team continued their provincial dominance with Treacy picking up a third Leinster title before lining out in a third All-Ireland final at Croke Park. Tipperary were Kilkenny's opponents on the day, however, by this stage Tipp's pool of players was ageing and the county's hurling fortunes were in decline. Kilkenny proved more than a match for the Munster champions. Goals from Paddy Moran, Martin Brennan and Tom Walsh at