The men's 800 metres competition at the 2012 Summer Olympics in London, United Kingdom, was held at the Olympic Stadium on 6–9 August. Fifty-five athletes from 43 nations competed. The event was won by David Rudisha of Kenya, the second consecutive and fourth overall title for Kenya in the event. Rudisha would later become the fourth man to successfully defend his Olympic 800 metres title, and the 11th to win two medals of any kind in the event. Nijel Amos' silver medal was the first Olympic medal ever for Botswana. Timothy Kitum of Kenya won the bronze medal.
The men's 800 metres event at the 2016 Summer Olympics took place between 12–15 August at the Olympic Stadium. Fifty-eight athletes from 39 nations competed. The event was won by David Rudisha of Kenya, the fourth man to successfully defend Olympic gold in the 800 metres. Taoufik Makhloufi of Algeria took silver, the first medal for the nation in the 800 metres since 2000. The United States had an even longer medal-less streak broken, as Clayton Murphy's bronze was their first since 1992.
The men's 800 metres at the 2015 World Championships in Athletics was held at the Beijing National Stadium on 22, 23 and 25 August.
The men's 800 metres at the 2017 World Championships in Athletics was held at the London Olympic Stadium on 5, 6, and 8 August.
The women's 400 metres event at the 2020 Summer Olympics took place from 3 to 6 August 2021 at the Japan National Stadium. 45 athletes from 34 nations competed. Shaunae Miller-Uibo won the gold medal in a personal best of 48.36 secs, a time which ranks her sixth on the world all-time list. In successfully defending her title, Miller-Uibo joined Marie-Jose Perec as the only women to win two Olympic 400 metres titles.
The men's 800 metres event at the 2020 Summer Olympics took place from 31 July to 4 August 2021 at the Japan National Stadium. In total 48 athletes were to start, but only 47 actually did. Emmanuel Korir of Kenya won the event, with his countryman Ferguson Rotich taking silver. It was the fourth consecutive victory in the men's 800 metres for Kenya. Patryk Dobek earned bronze, giving Poland its first medal in the event.
The women's 800 metres event at the 2020 Summer Olympics took place from 30 July to 3 August 2021 at the Japan National Stadium. 46 athletes from 29 nations competed. 19-year-old Athing Mu of the United States won the gold medal. The silver medal went to Keely Hodgkinson of Great Britain, and the bronze medal went to Mu's American teammate Raevyn Rogers.
The women's 4 × 400 metres relay event at the 2020 Summer Olympics took place on 5 and 7 August 2021 at the Japan National Stadium. There were 16 competing relay teams, with each team having at least 5 members from which 4 were selected in each round.
The men's 110 metres hurdles at the 2019 World Athletics Championships was held at the Khalifa International Stadium in Doha from 30 September to 2 October.
Mary Moraa is a Kenyan athlete who specialises in the 800 metres. She won the gold medal at the 2023 World Athletics Championships, a bronze medal in the event at the 2022 World Athletics Championships and a gold at the 2022 Commonwealth Games.
The men's 200 metres at the 2022 World Athletics Championships was held at the Hayward Field in Eugene from 18 to 21 July 2022.
The men's 400 metres at the 2022 World Athletics Championships was held at the Hayward Field in Eugene from 17 to 22 July 2022.
The men's 800 metres at the 2022 World Athletics Championships was held at the Hayward Field in Eugene from 20 to 23 July 2022.
The men's 400 metres hurdles at the 2022 World Athletics Championships was held at the Hayward Field in Eugene from 16 to 19 July 2022.
The women's 200 metres at the 2022 World Athletics Championships was held at the Hayward Field in Eugene, Oregon, U.S. from 18 to 21 July 2022.
The women's 400 metres at the 2022 World Athletics Championships was held at the Hayward Field in Eugene, Oregon, U.S. from 17 to 22 July 2022.
The women's 1500 metres at the 2022 World Athletics Championships was held at the Hayward Field in Eugene from 15 to 18 July 2022.
The women's 5000 metres at the 2022 World Athletics Championships was held at the Hayward Field in Eugene from 20 to 23 July 2022.
The women's 400 metres hurdles at the 2022 World Athletics Championships was held at the Hayward Field in Eugene from 19 to 22 July 2022. It was won by Sydney McLaughlin in a world record time of 50.68 seconds.
The women's 800 metres at the 2023 World Athletics Championships was held at the National Athletics Centre in Budapest from 23 to 27 August 2023.
