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
Athletics at the 2004 Summer Olympics – Women's 20 kilometres walk records were set during the competition. The qualification period for athletics was 1 January 2003 to 9 August 2004. For the women's 20 kilometres race walk, each National Olympic Committee was permitted to enter up to three athletes that had run the race in 1:33:30 or faster during the qualification period. If an NOC had no athletes that qualified under that standard, one athlete that had run the race in 1:38:00 or faster could be entered. Athletics at the 2004 Summer Olympics – Women's 20 kilometres walk The women's 20 kilometres race walk at the 2004 Summer Olympics as part