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.
Double (basketball)
A quadruple-double is defined as a performance in which a player accumulates a double digit number total in four of five statistical categories—points, rebounds, assists, steals and blocked shots—in a game. This feat is extremely rare: only four players have officially recorded a quadruple-double in National Basketball Association (NBA) history. The first American male player above the high school level to officially record a quadruple-double was Nate Thurmond, who achieved this feat in 1974 while playing for the NBA's Chicago Bulls. The first American female player above the high school level to officially record a quadruple-double was Ann Meyers, who achieved this feat in 1978 while playing for the UCLA Bruins, when women's college sports were under the auspices of the AIAW. The first male player in NCAA Division I history to record a quadruple-double was Lester Hudson in 2007. The first Division I women's player to have officially recorded a quadruple-double since the NCAA began sponsoring women's sports in 1981–82 was Veronica Pettry of Loyola–Chicago in 1989. Only three other women have done so since, and Shakyla Hill's quadruple-double for Grambling State in 2018 was the first since 1993. An earlier player, Jackie Spencer of Louisville, accomplished the feat against Cincinnati during the 1984–85 season, but the NCAA did not record assists and steals throughout Division I women's basketball at that time. The Metro Conference, then home to both schools, did officially record these statistics, but the NCAA did not start doing so until 1985–86 for assists and 1987–88 for steals.