Ireland national rugby union team tournament. It is contested against England, France, Italy, Scotland and Wales. Ireland was a member of the inaugural Home Nations in 1883, with France and Italy joining later to form the Five and Six Nations respectively. Ireland won their first championship in 1894, also winning the Triple Crown. Ireland's first Grand Slam occurred in the 1948 season and their second in the 2009 season. In total Ireland have been outright champions on fourteen occasions following their title in the 2018 Six Nations Championship and have nine shared wins. Ireland won their third ever Grand Slam in the 2018 Six Nations
Grand Slam (tennis) players have won the career Slam, including seven who won all four events with the same partner — an odd number because Margaret Court accomplished a career Grand Slam separately with Ken Fletcher and Marty Riessen. The two other teams which won all four events are Doris Hart with Frank Sedgman, and Martina Hingis with Leander Paes. Four of the 17 players have accomplished multiple career Grand Slams in mixed doubles, led by Margaret Court's quadruple Slam. Helen Wills Moody won all 16 of the Grand Slam singles tournaments she played beginning with the 1924 U.S. Championships and extending to