Sport of athletics athletics tracks for ease of measurement, and the 1908 Summer Olympics in London saw the introduction of the 3500-metre and 10-mile walks. Racewalking was briefly dropped from the Olympic programme in 1928, but the men's 50 kilometres race walk has been held at every Olympic Games but one since 1932. The men's 20 kilometres race walk was added to the Olympic athletics schedule in 1956 and the women's event was first held in 1992. The most common events in modern competition are over 10 km, 20 km and 50 km on roads, although women's 3 km and men's 5 km
Athletics at the 2015 Pan American Games – Men's 20 kilometres walk back after fighting a strategic battle with the rest of the field until the last lap. Each National Olympic Committee (NOC) was able to enter up to two entrants providing they had met the minimum standard (1.30.00) in the qualifying period (January 1, 2014 to June 28, 2015). Athletics at the 2015 Pan American Games – Men's 20 kilometres walk The men's 20 kilometres walk competition of the athletics events at the 2015 Pan American Games will take place on the 19 of July on a temporary circuit around the Ontario Place West Channel. The defending Pan American Games champion