Grand Slam (rugby union) Grand Slam was therefore available in the years 1908–1931 and 1947–1999 (Five Nations) and 2000–2016 (Six Nations), a total of 94 seasons to date. Grand Slams were in fact achieved on 39 of these occasions – 13 by England, 11 by Wales, 9 by France, 3 by Scotland and 3 by Ireland. (Italy, involved in the tournament since 2000, have yet to win a Grand Slam.) Consecutive Grand Slams have been won by Wales in 1908–1909, by England in 1913–1914, 1923–1924 and 1991–1992, and by France in 1997–1998. No team has yet achieved three consecutive Grand Slams. Prior to 2000,
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