Now playing Next Sport The World's Coolest Marathon More than 60 athletes from over 20 nations - and two dogs - braved the elements to run in this weekend's North Pole Marathon 17/04/2018
Now playing Next Sport El Morabity brothers dominate Marathon des Sables fourth stage The fourth stage covers a huge 86.2km, with runners having to complete the stage within 35 hours 12/04/2018
Now playing Next Sport Marathon des Sables: Rachid El Morabity edges brother Mohamed Morocco's Rachid El Morabity beat his brother Mohamed finishing in 3hr4mins in stage two of the Marathon des Sables 09/04/2018
Now playing Next Germany Six arrests in Berlin after foiling an alleged knife attack at half marathon Police arrested the men, who are aged between eighteen and twenty-one, after carrying out searches in the area. 08/04/2018
Now playing Next North Korea Fewer foreigners take part in the North Korean marathon this year Tensions on the Korean peninsula and a US travel ban on its citizens visiting North Korea, have reduced the number of tourists. 08/04/2018
Now playing Next Spain I am his legs and he is my heart Father and son team defy cerebral palsy to complete marathons 28/03/2018
Now playing Next Japan Japanese marathon runners are geniuses They can eat unlimited sweet treats whilst doing the marathon. 22/01/2018
Now playing Next Sport China: 2,000 run ice marathon on frozen river Zhao Jiadong win men’s gold medal in 3 hours 52 minutes and 13 seconds 02/01/2018
Now playing Next world news Your week in 60 seconds We look back at some of the biggest stories from around the world over the past seven days 01/12/2017
Now playing Next Afghanistan Afghan women defy tradition to run marathon NGO "Free to Run" bringing sports into Afghan womens' lives. 12/11/2017
Now playing Next USA Tight security for New York Marathon after truck attack The huge event takes place on Sunday, days after eight people were killed when they were mown down 04/11/2017
Now playing Next USA Security ramped up ahead of New York City Marathon After the Halloween truck attack in Manhattan, security will be tight during one of the most popular urban running events in the world: the New York City Marathon 03/11/2017
Now playing Next Italy Leaders get lost during Venice marathon, local takes advantage Local runner wins after motorcycle blunder. 23/10/2017
Now playing Next Greece Records smashed in latest Mount Olympus race Olympus Marathon's 14th edition sees male and female runners set new records 25/06/2017
Now playing Next no comment Conquering the Great Wall More than 2,000 runners from over 60 nations took part in one of the most challenging races in the world on Saturday (20 May), The Great Wall Marathon in China. 21/05/2017
Now playing Next Kenya Kenya's Eliud Kipchoge narrowly misses bid to break two-hour marathon Kenyan athlete Eliud Kipchoge has narrowly missed out on his bid to become the first ever person to run a sub-two hour marathon. 06/05/2017
Now playing Next Sport Marathon: Breaking the 2-hour barrier Three athletes are gearing up to attempt the impossible and run a marathon in under 2 hours. 05/05/2017
Now playing Next Sport Moroccan wins Marathon des Sables for a fifth time Moroccan Rachid El-Morabity has won the gruelling Marathon Des Sables in the south of Morocco for the fifth time. 15/04/2017
Now playing Next Sport North Pole hosts 'world's coolest race' It’s billed as the world’s coolest race. 11/04/2017
Now playing Next North Korea Pyongyang Marathon offers rare opportunity to visit North Korea On Sunday, April 9, over 1,000 foreign runners were on hand for a rare glimpse of one of the world’s most secretive countries. 11/04/2017