Eilidh Prise complete the event in just under 12 hours 'I never had any expectations of winning', says 26-year-old A Scottish woman has won one of the world's hardest ultra triathlons, crossing the line in just under 12 hours. Eilidh Prise finished first in the Norseman Xtreme Triathlon in Norway, consisting of a 3.8km swim, a 180km bike ride and a marathon.