Competitor bio:

Krzysztof is a 49-year-old entrepreneur who started running eleven years ago. He has already run marathons on each of the 7 continents and at North Pole and is therefore a member of The 7 Continents Marathon Club and the Marathon Grand Slam Club. He likes travelling and photography and runs just for fun. He has completed marathons such as the Antarctic Ice Marathon, North Pole Marathon, Volcano Marathon, Everest Marathon, Bhutan Marathon, Baikal Ice Marathon, Sahara Marathon, UTAT Marathon and Patagonian Marathon.