Albania competed at the 2007 World Championships in Athletics in Osaka, Japan, from 25 August to 2 September 2007.
Algeria competed at the 2007 World Championships in Athletics in Osaka, Japan, from 25 August to 2 September 2007.
American Samoa competed at the 2007 World Championships in Athletics in Osaka, Japan, from 25 August to 2 September 2007.
Andorra competed at the 2007 World Athletics Championships in Osaka, Japan, from 25 August to 2 September 2007.
Angola competed at the 2007 World Athletics Championships in Osaka, Japan, from 25 August to 2 September 2007.
Angola competed at the 2007 World Athletics Championships in Osaka, Japan, from 25 August to 2 September 2007.
Antigua and Barbuda competed at the 2007 World Athletics Championships in Osaka, Japan, from 25 August to 2 September 2007.
U.S. Virgin Islands competed at the 2019 World Athletics Championships in Doha, Qatar, from 27 September–6 October 2019. U.S. Virgin Islands had entered 1 athlete.
Solomon Islands competed at the 2019 World Athletics Championships in Doha, Qatar, from 27 September–6 October 2019. Solomon Islands had entered 1 athlete.
Cook Islands competed at the 2019 World Athletics Championships in Doha, Qatar, from 27 September–6 October 2019. Cook Islands had entered 1 athlete.
Marshall Islands competed at the 2019 World Athletics Championships in Doha, Qatar from 27 September to 6 October 2019.
British Virgin Islands competed at the 2019 World Athletics Championships in Doha, Qatar, from 27 September–6 October 2019.
Cayman Islands competed at the 2019 World Athletics Championships in Doha, Qatar, from 27 September–6 October 2019.
Northern Mariana Islands competed at the 2019 World Athletics Championships in Doha, Qatar, from 27 September–6 October 2019.
British Virgin Islands competed at the 2022 World Athletics Championships in Eugene, United States, from 15 to 24 July 2022.
The women's 400 metres hurdles at the 2022 European Athletics Championships took place in three rounds at the Olympiastadion in Munich, Germany, from 17 to 19 August 2022.
India competed at the 2007 World Athletics Championships in Osaka, Japan from 25 August to 2 September 2007.
Afghanistan competed at the 2007 World Athletics Championships in Osaka, Japan, from 25 August to 2 September 2007.
Argentina competed at the 2007 World Championships in Athletics in Osaka, Japan, from 25 August to 2 September 2007.
Armenia competed at the 2007 World Championships in Athletics in Osaka, Japan, from 25 August to 2 September 2007.
