Race walking at the Olympics the first two editions, the women's event was extended to match the men's 20 km distance from the 2000 Sydney Olympics onwards. Women have never commonly competed internationally over 50 km, thus it has never been proposed as an Olympic event – as of 2012 it remains the only event on the Olympic athletics programme in which men compete, but women do not have an equivalent. The 50 km is also the longest distance race for an Olympic athletics event. The Olympic records in racewalking were all broken at the 2012 London Olympics. In the 20 km walk Chen Ding
2011 World Championships in Athletics – Women's 20 kilometres walk 2011 World Championships in Athletics – Women's 20 kilometres walk ] The Women's 20 kilometres walk event at the 2011 World Championships in Athletics was held on a loop course starting and finishing at Gukchae - bosang Memorial Park on August 31. Olga Kaniskina of Russia looked to continue a series of major victories which had seen her win consecutive world titles (2007, 2009), the 2008 Olympic title and a gold medal at the 2010 European Championships. Two other Russians, Vera Sokolova and Anisya Kirdyapkina, had walked the two fastest times ever for the distance that February and comprised her