Figure skating they may be distinguished. The two categories of jumps are toe jumps and edge jumps. The number of rotations performed in the air determines whether the jump is a single, double, triple, or quadruple (commonly known as a "quad"). The simplest jump begins with a waltz jump which can only be done in a half-leap and is not classified as a single, double, or triple jump. Senior-level male single skaters perform mostly triple and quadruple jumps in competition. Triple jumps other than the Axel are commonly performed by female single skaters. It is extremely rare for a female skater to
Double (volleyball) and indicates outstanding all-around individual performance. Quadruple-double is defined as an individual performance in which a player accumulates a double digit number total in four of the five major statistical categories--aces, kills, blocks, digs, and assists--during the course of one match. Because of specialization by position (setters, liberos, middle blockers, outside hitters, opposite hitters, defensive specialists, etc.), quadruple doubles are seldom seen at collegiate or professional levels. Quintuple-double is defined as an individual performance in which a player accumulates a double digit number total in all five statistical categories (aces, kills, blocks, digs, and assists) in a single match. Such