The men's 400 metres at the 2004 Summer Olympics as part of the athletics program were held at the Athens Olympic Stadium from August 20 to 23. Sixty-two athletes from 48 nations competed. The event was won by Jeremy Wariner of the United States, the sixth in what would ultimately be 7 consecutive American victories stretching from 1984 to 2008 and the 18th overall title in the event by the United States. The United States swept the podium for the 4th time in the event.
The women's 400 metres at the 2004 Summer Olympics as part of the athletics program were held at the Athens Olympic Stadium from August 21 to 24.
The men's 400 metres at the 2011 IPC Athletics World Championships is held at the QEII Stadium on 22-23 and 26–29 January
The men's 400 metres hurdles at the 2017 World Championships in Athletics was held at the London Olympic Stadium on 6–9 August.
The men's 400 metres at the 2018 Commonwealth Games, as part of the athletics programme, took place in the Carrara Stadium between 8 and 10 April 2018.
The men's 4 × 400 metres relay at the 2018 Commonwealth Games, as part of the athletics programme, took place in the Carrara Stadium on 13 and 14 April 2018.
The men's 100 metres at the 2019 World Para Athletics Championships was held in Dubai from 7–15 November.
The men's 400 metres at the 2019 World Para Athletics Championships was held in Dubai from 7–15 November.
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 1500 metres at the 2022 Commonwealth Games, as part of the athletics programme, took place in the Alexander Stadium on 4 and 6 August 2022.
The men's 200 metres at the 2022 Commonwealth Games, as part of the athletics programme, took place in the Alexander Stadium on 4th, 5th and 6th of August 2022.
The women's 200 metres at the 2022 Commonwealth Games, as part of the athletics programme, took place in the Alexander Stadium on 4, 5 and 6 August 2022.
The women's 400 metres at the 2022 Commonwealth Games, as part of the athletics programme, took place in the Alexander Stadium on 3, 5 and 7 August 2022.
The men's 800 metres at the 2022 Commonwealth Games, as part of the athletics programme, took place in the Alexander Stadium in Birmingham, England on 3 and 7 August 2022.
The men's 4 × 400 metres relayat the 2022 Commonwealth Games, is part of the athletics programme, which took place in the Alexander Stadium on 5 and 7 August 2022.
The men's 110 metres hurdles at the 2022 European Athletics Championships was held at the Olympiastadion on 16 and 17 August.
The men's 400 metres hurdles event at the 2023 European Athletics U23 Championships was held in Espoo, Finland, at Leppävaara Stadium on 14 and 15 July.
