The women's 800 metres at the 2009 World Championships in Athletics was held at the Olympic Stadium on 16, 17 and 19 August. Prior to the championships, there was no clear favourite for the race – the twenty fastest times of the season had been run by seventeen different athletes. The reigning World and Olympic champions, Janeth Jepkosgei and Pamela Jelimo, had not shown the dominance of previous seasons. The two fastest runners of the season, Caster Semenya and Maggie Vessey, had recently set personal bests but lacked any major championships experience, while third best Anna Alminova was a 1500 metres specialist. European Indoor Champion Mariya Savinova and Svetlana Klyuka, fourth at the Olympics, were other strong competitors. The 2007 World medallists Hasna Benhassi and Mayte Martínez, and Olympic finalist Yuliya Krevsun were also predicted as medal possibilities.
The men's 60 metres at the 2010 IAAF World Indoor Championships was held at the ASPIRE Dome on 12 and 13 March.
The men's 60 metres hurdles competition at the 2010 IAAF World Indoor Championships was held at the ASPIRE Dome on 12 and 14 March.
The women's 60 metres competition at the 2010 IAAF World Indoor Championships was held at the ASPIRE Dome on 12 and 14 March.
Justyna Święty-Ersetic is a Polish sprinter specialising in the 400 metres. She was the 2018 European champion and a two-time European Indoor Championship medallist in this event. Święty-Ersetic won many medals at major championships as part of Polish 4 × 400 m relays, including a gold in the mixed relay and a silver in the women's relay at the 2020 Tokyo Olympics.
At the 8th National Games of the People's Republic of China, the athletics events were held in Shanghai in October 1997.
The men's 800 metres event at the 2015 European Athletics Indoor Championships was held on 6 March at 12:41 (heats), on 7 March at 18:25 (semifinals) and on 8 March at 15:30 (final) local time. Marcin Lewandowski won the race.
The women's 100 metres at the 2015 World Championships in Athletics was held at the Beijing National Stadium on 23 and 24 August. Shelly-Ann Fraser-Pryce entered the competition as the defending champion and the world leading athlete that season with a time of 10.74 seconds.
The women's 400 metres at the 2018 IAAF World Indoor Championships took place on 2 and 3 March 2018.
Natalia Kaczmarek is a Polish athlete sprinter who specializes in the 400 metres. She won the silver medal in her individual event at the 2022 European Championships. Kaczmarek was part of 4 x 400 m relays at the 2020 Tokyo Olympics, earning a gold in the mixed event, and a silver in the women's event.
The women's 400 metres hurdles event at the 2020 Summer Olympics took place between 31 July and 4 August 2021 at the Japan National Stadium. 39 athletes from 25 nations competed.
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 5 members from which 4 were selected in each round.
The mixed 4 × 400 metres relay event at the 2020 Summer Olympics took place on 30 and 31 July 2021 at the Japan National Stadium. There were 16 competing relay teams, with each team having 4 members. It was the first mixed-gender relay in athletics held at the Olympic Games, as part of a larger focus on gender equality by the International Olympic Committee.
The women's 4 × 400 metres relay at the 2019 World Athletics Championships was held at the Khalifa International Stadium in Doha, Qatar, from 5 to 6 October 2019. In the final the Jamaican team were initially disqualified, but were reinstated as the bronze medallists upon appeal.
Femke Bol is a Dutch track and field athlete who specialises in the 400 metres hurdles and 400 metres. She is the 2020 Tokyo Olympics bronze medallist in the 400 m hurdles with the current European record of 52.03 seconds, becoming the third-fastest woman of all time and the first Dutch Olympic medallist at the event. Bol won a silver in the event at the 2022 World Championships. She was the first female athlete to complete the 400 m/400 m hurdles double at a major championships after she won both titles at the 2022 European Championships, where she added third gold for the women's 4 x 400 m relay. A two-time 2022 World Indoor Championship silver medallist and a two-time 2021 European Indoor champion, Bol is also a two-time Diamond League winner.
The men's 60 metres event at the 2021 European Athletics Indoor Championships was held on 6 March 2021 at 10:18 (heats), at 13:50 (semi-finals), and at 20:58 (final) local time.
The women's 60 metres event at the 2021 European Athletics Indoor Championships was held on 7 March 2021 at 10:18 (heats), at 12:40 (semi-finals), and at 18:46 (final) local time.
The men's 60 metres hurdles event at the 2021 European Athletics Indoor Championships was held on 6 March 2021 at 13:05 (heats) and on 7 March 2021 13:05 (semi-finals), at 17:00 (final) local time.
The women's 400 metres at the 2022 World Athletics Indoor Championships took place on 18 and 19 March 2022.
The women's 4 × 400 metres relay at the 2022 World Athletics Indoor Championships took place on 20 March 2022.
