The participation trends in the ‘LOST-Race’ are shown in Table 1. In the years 2008 to 2012, 284 swimmers including 111 women (39.1%) and 173 men (60.9%) finished the race. Eighty women (72.1%) and 122 men (70.5%) started in the wetsuit category, 31 women (27.9%) and 51 men (29.5%) started without wearing a wetsuit.