Longest polar ultramarathon world record broken in Antarctica CNN 0 149 03.09 02:29 https://www.youtube.com/watch?v=DU_plzRzOJY + 13 https://www.youtube.com/feeds/videos.xml?channel_id=UCupvZG-5ko_eiXAup… + 12 Longest polar ultramarathon world record broken in Antarctica