Lisa Smith-Batchen was the first American to win  Marathon des Sables a six day marathon that spans how long of a distance?
Lisa Smith-Batchen Lisa Smith-Batchen is an ultramarathon runner and ironman competitor. She was the first American to win Marathon des Sables.
Six-day racing A six or six-day is a track cycling race that lasts six days. Six-day races started in Britain, spread to many regions of the world, were brought to their modern style in the United States and are now mainly a European event. Initially, individuals competed alone, the winner being the individual who completed the most laps. However, the format was changed to allow teams (usually of two riders each), one rider racing while the other rested. The 24-hours a day regime has also been relaxed, so that most six-day races involve six nights of racing, typically from 6pm to 2am, on indoor tracks (velodromes).