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 –
Explorers Grand Slam complete a "True Explorers Grand Slam". In June 2018, Zhang Liang became the second person to complete this kind of Grand Slam. In 2011, former Wales rugby union international Richard Parks became the first person ever to complete the (Last Degrees) Grand Slam within a single calendar year, doing so within seven months. Cheryl Bart is the first Australian female and the 31st person worldwide to complete the Explorer's Grand Slam. She completed the North Pole on 22 April 2013 AEST. Vanessa O'Brien became the first woman to complete the (Last Degree) Grand Slam under a single calendar year, doing