A quadruple jump or quad is a figure skating jump with at least four revolutions. All quadruple jumps have four revolutions, except for the quadruple Axel, which has four and a half revolutions. The quadruple toe loop and quadruple Salchow are the two most commonly performed quads. Quadruple jumps have become increasingly common among World and Olympic level men's single skaters, to the point that not performing a quad in a program has come to be seen as a severe handicap. This phenomenon is often referred to as the "quad revolution". Since 2018, quadruple jumps have also become an increasingly common feature of women's skating, although they are not allowed under the International Skating Union ("ISU") rules in the ladies' short program. The first person to land a ratified quadruple jump in competition was Canadian Kurt Browning in 1988. Japanese skater Miki Ando became the first female to do so, in 2002.
American skater Nathan Chen performing a quad jump during his free skate at the 2018 Internationaux de France.
Canadian skater Kurt Browning (right), the first skater to land a quad in competition, pictured in 1989.
Japanese skater Miki Ando, first female skater to land a quad in competition, pictured at the 2009 World Championships.
Figure skating jumps are an element of three competitive figure skating disciplines: men's singles, women's singles, and pair skating – but not ice dancing. Jumping in figure skating is "relatively recent". They were originally individual compulsory figures, and sometimes special figures; many jumps were named after the skaters who invented them or from the figures from which they were developed. It was not until the early part of the 20th century, well after the establishment of organized skating competitions, when jumps with the potential of being completed with multiple revolutions were invented and when jumps were formally categorized. In the 1920s Austrian skaters began to perform the first double jumps in practice. Skaters experimented with jumps, and by the end of the period, the modern repertoire of jumps had been developed. Jumps did not have a major role in free skating programs during international competitions until the 1930s. During the post-war period and into the 1950s and early 1960s, triple jumps became more common for both male and female skaters, and a full repertoire of two-revolution jumps had been fully developed. In the 1980s men were expected to complete four or five difficult triple jumps, and women had to perform the easier triples. By the 1990s, after compulsory figures were removed from competitions, multi-revolution jumps became more important in figure skating.
Norwegian figure skater Axel Paulsen created the Axel jump c. 1895.
Japanese figure skater Midori Ito, first female skater to land a triple Axel, in 1989
Russian figure skater Alina Zagitova, namesake of the "Zagitova Rule", in 2019
Canadian pair skaters Barbara Underhill and Paul Martini performing a throw jump in 1983