Synchronized swimming is usually a team sport, so that grinning swimmers can wave their limbs in synchrony with other grinning swimmers. The difficulty of perfect group coordination -along with the mandate not to breathe, the ban on goggles, and the Jell-O-coiffures- makes it one of the greatest underdog sports of the Olympic Games.
But the oxymoronic "solo synchro" is a different story. One woman, one song. The eerie sight of a single leg slowly appearing and disappearing in an Olympic-sized swimming pool was enough to persuade Olympic organizers to cancel the event forever in 1984.