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 1999 All-Africa Games 4 × 400 metres for men and women. South African athletes won all four throwing events for men. Some new women's events were added: pole vault, hammer throw and 10 kilometres road walk. Athletics at the 1999 All-Africa Games The seventh All-Africa Games were held in September 1999 in Johannesburg, South Africa. As the track is at an altitude of 1748 metres all performances are considered to be set at altitude, this is believed to assist events up to 400 metres and in the long jump and triple jump. However, for events beyond 800 metres the thinner air is believed