Held in Norway on the same latitude as Anchorage in Alaska, the Norseman is widely regarded as the toughest Iron distance triathlon in the world.
British Triathlon launch #YourGOTRI campaign to get people creating their own triathlons.
His third Iron distance triathlon that season, Tobias took part in the inaugural Challenge Henley-upon-Thames
Most people find doing one sprint triathlon hard enough. But imagine doing one triathlon after another for an entire weekend? Curious to find out, we sent Christian Moxon off to the Leukaemia & Lymphoma Researched Blenheim Palace Triathlon in Oxfordshire to discover if he is the ultimate weekend warrior.