Zambia competed at the 2004 Summer Olympics in Athens, Greece, from 13 to 29 August 2004.
Eritrea competed at the 2012 Summer Olympics in London, from 27 July to 12 August 2012. This was the nation's fourth appearance at the Olympics.
The men's 400 metres at the 2010 African Championships in Athletics were held on July 28–30.
The Men's 4 × 400 metres relay event at the 2011 World Championships in Athletics was held at the Daegu Stadium on 1 and 2 September. Thursday and Friday. This is a change in schedule from previous years when all the relays were at the end of the program. This might necessitate a change in strategy to allow for team members involved in other events.
The men's 200 metres at the 2012 World Junior Championships in Athletics was held at the Estadi Olímpic Lluís Companys on 12 and 13 July.
The men's 4 × 100 metres relay at the 2012 World Junior Championships in Athletics was held at the Estadi Olímpic Lluís Companys on 13 and 14 July.
The men's 4 × 400 metres relay at the 2012 World Junior Championships in Athletics was held at the Estadi Olímpic Lluís Companys on 14 and 15 July.
The men's 400 metres at the 2012 African Championships in Athletics was held at the Stade Charles de Gaulle on 27, 28 and 29 June.
The men's 3000 metres steeplechase at the 2012 World Junior Championships in Athletics was held at the Estadi Olímpic Lluís Companys on 13 and 15 July.
The women's 400 metres hurdles at the 2012 World Junior Championships in Athletics was held at the Estadi Olímpic Lluís Companys on 12, 13, and 14 July.
The women's 4 × 100 metres relay at the 2012 World Junior Championships in Athletics was held at the Estadi Olímpic Lluís Companys on 13 and 14 July.
The women's 4 × 400 metres relay at the 2012 World Junior Championships in Athletics was held at the Estadi Olímpic Lluís Companys on 14 and 15 July 2012.
The women's 400 metres at the 2012 African Championships in Athletics was held at the Stade Charles de Gaulle on 27, 28 and 29 June.
The sports under the umbrella of athletics, particularly track and field, use a variety of statistics. In order to report that information efficiently, numerous abbreviations have grown to be common in the sport. Starting in 1948 by Bert Nelson and Cordner Nelson, Track & Field News became the leader in creating and defining abbreviations in this field. These abbreviations have also been adopted by, among others, World Athletics; the world governing body, various domestic governing bodies, the Association of Track and Field Statisticians, the Association of Road Racing Statisticians, the Associated Press, and the individual media outlets who receive their reports. These abbreviations also appear in Wikipedia.
The men's 4 × 100 metres relay event at the 2016 African Championships in Athletics was held on 24 June in Kings Park Stadium.
The women's 400 metres hurdles event at the 2018 African Championships in Athletics was held on 4 and 5 August in Asaba, Nigeria.
The men's 400 metres event at the 2018 African Championships in Athletics was held on 2 and 3 August in Asaba, Nigeria.
The women's 400 metres event at the 2018 African Championships in Athletics was held on 2 and 3 August in Asaba, Nigeria.
South Africa competed at the World Athletics Championships in Doha, Qatar from 27 September to 6 October 2019.
South Africa competed at the 2022 World Athletics Championships in Eugene, United States, from 15 to 24 July 2022.
