The men's 100 metres competition at the 2012 Summer Olympics in London, United Kingdom was held at the Olympic Stadium on 4–5 August 2012. Seventy-four athletes from 61 nations competed. Each nation was limited to 3 athletes per rules in force since the 1930 Olympic Congress. The competition comprised four rounds: a preliminary round for entrants without the minimum qualifying standard, a heats round, followed by three semi-finals of eight athletes each, which then reduced to eight athletes for the final.
The men's 100 metres at the 2011 World Championships in Athletics was held at the Daegu Stadium on August 27 and August 28. The event was won by Yohan Blake of Jamaica, who became the youngest ever world champion in the 100 metres at 21 years, 245 days. The highly favored defending champion and world record holder Usain Bolt was disqualified from the final for making a false start. Seventy four athletes started the competition, with 61 nations being represented. It was the first global final to be held following the introduction of the no-false start rule.
The women's 100 metres event at the 2016 Summer Olympics took place between 12 and 13 August at the Olympic Stadium. The winning margin was 0.12 seconds. The winner, Elaine Thompson from Jamaica, had the second slowest reaction time in the final.
The men's 100 metres at the 2015 World Championships in Athletics was held at the Beijing National Stadium on 22 and 23 August.
The men's 100 metres at the 2019 World Athletics Championships was held at the Khalifa International Stadium in Doha on 27 to 28 September 2019.
The men's 4 × 100 metres relay event at the 2021 European Athletics U23 Championships was held on Day 4 on July 11 at Kadriorg Stadium in Tallinn, Estonia.
The men's 100 metres T11 event at the 2020 Summer Paralympics in Tokyo, took place between 1 and 2 September 2021.
The men's 100 metres at the 2022 Commonwealth Games, as part of the athletics programme, took place at the Alexander Stadium from 2 and 3 August 2022.
The men's 100 metres at the 2023 World Athletics Championships was held at the National Athletics Centre in Budapest on 19 and 20 August 2023.
The women's 100 metres event at the 2023 European Athletics U23 Championships was held in Espoo, Finland, at Leppävaara Stadium on 13 and 14 July.
The men's 100 metres event at the 2023 European Athletics U23 Championships was held in Espoo, Finland, at Leppävaara Stadium on 13 and 14 July.
The men's 800 metres event at the 2021 Summer World University Games was held on 4, 5 and 6 August 2023 at the Shuangliu Sports Centre Stadium in Chengdu, China.
The men's 110 metres hurdles event at the 2021 Summer World University Games was held on 4 and 5 August 2023 at the Shuangliu Sports Centre Stadium in Chengdu, China.
The women's 100 metres event at the 2021 Summer World University Games was held on 1 and 2 August 2023 at the Shuangliu Sports Centre Stadium in Chengdu, China.
The men's 400 metres hurdles event at the 2021 Summer World University Games was held on 2, 3 and 4 August 2023 at the Shuangliu Sports Centre Stadium in Chengdu, China.
The men's 200 metres event at the 2021 Summer World University Games was held on 3 and 4 August 2023 at the Shuangliu Sports Centre Stadium in Chengdu, China.
The men's 400 metres event at the 2021 Summer World University Games was held on 1, 2 and 3 August 2023 at the Shuangliu Sports Centre Stadium in Chengdu, China.
The women's 100 metres hurdles event at the 2021 Summer World University Games was held on 3 and 4 August 2023 at the Shuangliu Sports Centre Stadium in Chengdu, China.
The men's 100 metres event at the 2024 Summer Olympics took place on 3 August and 4 August at the Stade de France in Paris. Noah Lyles won the gold medal, setting a new personal best in the 100m and giving the United States its first victory in the event since 2004. Jamaican Kishane Thompson finished in second, taking the silver medal. The winning time of 9.79 was achieved by both Lyles and Thompson, but Lyles crossed the line five one thousandths of a second faster to take gold. Lyles' teammate Fred Kerley finished third in 9.81, winning bronze.
The women's 100 metres at the 2024 Summer Olympics was held in four rounds at the Stade de France in Paris, France, on 2 and 3 August 2024. This was the twenty-third time that the women's 100 metres has been contested at the Summer Olympics. A total of 40 athletes qualified for the event by entry standard or ranking. Julien Alfred won Saint Lucia's first-ever Olympic medal after taking gold in the final.
