2013 Tokyo Marathon 2:06:50 hours. The women's winner, Aberu Kebede, had a time of 2:25:34 hours, which was six seconds off the women's course best. The mass races set a new participation record with a total of 28,721 runners entering the race over 42.195 kilometres (26 miles and 385 yards), and 36,676 people taking part in the day's races as a whole. A day prior to the race, the International Friendship Run was held with a distance of roughly 4 km. The non-competitive race between athletes, organisers and registered marathon entrants began with warm-up radio exercises and took place in Shiokaze Park and
Swimming at the 2012 Summer Olympics – Women's marathon 10 kilometre water marathon at the 2012 Olympics featured a field of 25 swimmers: Swimming at the 2012 Summer Olympics – Women's marathon 10 kilometre The women's marathon swimming over a distance of 10 kilometres at the 2012 Olympic Games in London took place on 9 August in the Serpentine at Hyde Park in London, United Kingdom. Hungary's Éva Risztov ended her eight-year absence from Olympic action to capture the women's 10 km marathon title in open water swimming. Leading most of the stretch in a grueling race, she held off a late resistant surge from American teen Haley Anderson on the