Grand Slam (rugby union) Grand Slam (rugby union) In rugby union, a Grand Slam (Irish: "Caithréim Mhór". Welsh: "Y Gamp Lawn". French: "Grand Chelem") occurs when one team in the Six Nations Championship (or its Five Nations predecessor) manages to beat all the others during one year's competition. This has been achieved 39 times in total, for the first time by Wales in 1908, and most recently by Ireland in 2018. The team to have won the most Grand Slams is England with 13. In another context, a Grand Slam tour refers to a touring side – South Africa, Australia or New Zealand –
Grand Slam (rugby union) term came into use. It is also applied to the 1908 and 1909 seasons, when matches with France took place during, but outside of, the then Home Nations Championships. However the Grand Slam honour is not applied to seasons in which only the four home nations were involved (1883–1907 and 1932–1939) – in that case a team that won all its matches is said to have achieved the Triple Crown. This honour is still competed for between the four home nations within the Six Nations Championship, and any Grand Slam-winning home nation will necessarily also win the Triple Crown. A