Quad (figure skating)
A quad, or quadruple, is a figure skating jump with at least three but less than four revolutions. Most quadruple jumps have 3 1/2 revolutions; the quadruple Axel has 4 1/2 revolutions, although no figure skater to date has completed this jump in competition. The quadruple toe loop and quadruple Salchow are the two most commonly skated in the discipline. Quadruple jumps have become increasingly common among World and Olympic level men's single skaters, to the point that not having one in a program has come to be seen as a severe handicap. The first person to land a ratified quadruple jump in competition was Canadian Kurt Browning in 1988. In 2002, Miki Ando became the first woman to do so, and she remains one of only two women to have landed a ratified quadruple jump in competition.
Three Poles Challenge
The first person to reach all three locations was Edmund Hillary. He reached the top of Everest in May 1953, the South Pole in January 1958 and made it to the North Pole in company with Neil Armstrong in April 1985.
Hillary flew to the North Pole. The first person to reach all three locations on foot was Erling Kagge. He had reached all three by May 1994, being 6 months faster than the next person. On 5 August 1997 Antoine de Choudens (France, 1969–2009) became the only climber to accomplish the Three Poles Challenge on foot without using supplementary oxygen on the Everest climb. Tina Sjögren became the first woman to complete the challenge in 2002.