<P> A quad, or quadruple, is a figure skating jump with at least four but less than five revolutions . Most quadruple jumps have exactly four revolutions; the quadruple Axel has 41⁄2 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 . </P> <P> In singles competition for men: </P>

Who invented the quad jump in figure skating