Figure skating jumps
Jumps are referred to by how many times the skater turns in the air. One revolution (one and a half for the Axel) is a "single" jump. Two revolutions (two and a half for the Axel) is a "double" jump. Three revolutions (three and a half for the Axel) is a "triple" jump. Four revolutions (four and a half for the Axel, although this has never been done in competition) is a "quadruple" or "quad" jump. The first triple jump landed in competition was a loop jump. It was landed by Dick Button in 1952. The first quadruple jump landed in competition was a toe loop jump. It was landed by Kurt Browning in 1988. Currently, men in world-class competition usually attempt a full set of triples and sometimes one or two quadruple jumps in their free skating programs. Triple Axels are rare for ladies, and quadruple jump attempts even more so.
Alvin Kraenzlein
Alvin Christian "Al" Kraenzlein (December 12, 1876 – January 6, 1928), known as "the father of the modern hurdling technique", was an American track-and-field athlete, and the first sportsman in the history of Olympic games to win four individual gold medals in a single discipline at the 1900 Summer Olympics in Paris. Before, Carl Schuhmann, a German athlete, won four Olympic titles in gymnastics and wrestling at the 1896 Summer Olympics in Athens. , Alvin Kraenzlein is the only track-and-field athlete who has won four individual titles at one Olympics. Kraenzlein is also known for developing a pioneering technique of straight-leg hurdling, which allowed him to set two world hurdle records. He is an Olympic Hall of Fame (1984) and USA Track & Field (1974) inductee.