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 –
Wales national rugby union team All Blacks, in 1905, when they defeated them 3–0 in a famous match at Cardiff Arms Park. Welsh rugby struggled between the two World Wars, but experienced a second 'golden age' between 1969 and 1980 when they won eight Five Nations Championships. Wales played in the inaugural Rugby World Cup in 1987 where they achieved their best ever result of third. Following the sport allowing professionalism in 1995, Wales hosted the 1999 World Cup and, in 2005, won their first Six Nations Grand Slam. That was the first Grand Slam won by a team playing most of the matches away