Cheikh Tidiane Diouf of team Senegal competes during the men's 4x400m relay qualifying round 1 at the 2026 World Athletics Relays at the National Stadium in Gaborone, capital of Botswana, May 2, 2026. (Xinhua/Yang Guang)

Aidan Murphy (L) of team Australia and Bayapo Ndori of team Botswana compete during the men's 4x400m relay qualifying round 1 at the 2026 World Athletics Relays at the National Stadium in Gaborone, capital of Botswana, May 2, 2026. (Xinhua/Yang Guang)

Hannah Van Niekerk (R) relays with Marlie Viljoen of team South Africa during the women's 4x400m relay qualifying round 1 at the 2026 World Athletics Relays at the National Stadium in Gaborone, capital of Botswana, May 2, 2026. (Xinhua/Yang Guang)

Gerren Muwishi, Thandazani Ndhlovu, Zuze Leeford and Dennis Bradley Hove of team Zimbabwe celebrate for being qualified for 2027 Beijing World Athletics Championships after the men's 4x400m relay qualifying round 1 at the 2026 World Athletics Relays at the National Stadium in Gaborone, capital of Botswana, May 2, 2026. (Xinhua/Yang Guang)

Gafari Badmus of team Nigeria competes during the men's 4x400m relay qualifying round 1 at the 2026 World Athletics Relays at the National Stadium in Gaborone, capital of Botswana, May 2, 2026. (Xinhua/Yang Guang)

Ammar Ismail Yahia Ibrahim, Ashraf Hussen Osman, Bassem Hemeida and Youssouf Abdelaziz Djibrine of team Qatar celebrate for being qualified for 2027 Beijing World Athletics Championships after the men's 4x400m relay qualifying round 1 at the 2026 World Athletics Relays at the National Stadium in Gaborone, capital of Botswana, May 2, 2026. (Xinhua/Yang Guang)

Bassem Hemeida (R) hugs with Ashraf Hussen Osman of team Qatar after the men's 4x400m relay qualifying round 1 at the 2026 World Athletics Relays at the National Stadium in Gaborone, capital of Botswana, May 2, 2026. (Xinhua/Yang Guang)

Dianna Proctor of team Canada competes during the women's 4x400m relay qualifying round 1 at the 2026 World Athletics Relays at the National Stadium in Gaborone, capital of Botswana, May 2, 2026. (Xinhua/Chen Wei)

Nicole Yeargin of team Britain reacts after the women's 4x400m relay qualifying round 1 at the 2026 World Athletics Relays at the National Stadium in Gaborone, capital of Botswana, May 2, 2026. (Xinhua/Chen Wei)

Ashraf Hussen Osman (R) of team Qatar reacts during the men's 4x400m relay qualifying round 1 at the 2026 World Athletics Relays at the National Stadium in Gaborone, capital of Botswana, May 2, 2026. (Xinhua/Chen Wei)

Andrenette Knight of team Jamaica competes during the women's 4x400m relay qualifying round 1 at the 2026 World Athletics Relays at the National Stadium in Gaborone, capital of Botswana, May 2, 2026. (Xinhua/Yang Guang)

Dianna Proctor, Jasneet Nijjar, Zoe Sherar, Lauren Gale of team Canada (L to R) react for being qualified for 2027 Beijing World Athletics Championships after the women's 4x400m relay qualifying round 1 at the 2026 World Athletics Relays at the National Stadium in Gaborone, capital of Botswana, May 2, 2026. (Xinhua/Yang Guang)

Emily Newnham (R) relays with Charlotte Henrich of team Britain during the women's 4x400m relay qualifying round 1 at the 2026 World Athletics Relays at the National Stadium in Gaborone, capital of Botswana, May 2, 2026. (Xinhua/Yang Guang)

Ashraf Hussen Osman (3rd L) of team Qatar reacts during the men's 4x400m relay qualifying round 1 at the 2026 World Athletics Relays at the National Stadium in Gaborone, capital of Botswana, May 2, 2026. (Xinhua/Yang Guang)

Josefine Tomine Eriksen Aks, Astri Ertzgaard, Amalie Iuel, Henriette Jaeger of team Norway (L to R) celebrate for being qualified for 2027 Beijing World Athletics Championships after the women's 4x400m relay qualifying round 1 at the 2026 World Athletics Relays at the National Stadium in Gaborone, capital of Botswana, May 2, 2026. (Xinhua/Yang Guang)

Ericsson Tavares, Pedro Afonso, Joao Coelho and Omar Elkhatib of team Portugal celebrate for being qualified for 2027 Beijing World Athletics Championships after the men's 4x400m relay qualifying round 1 at the 2026 World Athletics Relays at the National Stadium in Gaborone, capital of Botswana, May 2, 2026. (Xinhua/Yang Guang)

Nikola Bisova, Barbora Malikova, Lurdes Gloria Manuel, Terezie Taborska of the Czech Republic react for being qualified for 2027 Beijing World Athletics Championships after the women's 4x400m relay qualifying round 1 at the 2026 World Athletics Relays at the National Stadium in Gaborone, capital of Botswana, May 2, 2026. (Xinhua/Yang Guang)

Nicole Yeargin, Laviai Nielsen, Charlotte Henrich, Emily Newnham of team Britain celebrate for being qualified for 2027 Beijing World Athletics Championships after the women's 4x400m relay qualifying round 1 at the 2026 World Athletics Relays at the National Stadium in Gaborone, capital of Botswana, May 2, 2026. (Xinhua/Yang Guang)

Aidan Murphy (R) of team Australia competes during the men's 4x400m relay qualifying round 1 at the 2026 World Athletics Relays at the National Stadium in Gaborone, capital of Botswana, May 2, 2026. (Xinhua/Chen Wei)

Aidan Murphy (R) of team Australia reacts after the men's 4x400m relay qualifying round 1 at the 2026 World Athletics Relays at the National Stadium in Gaborone, capital of Botswana, May 2, 2026. (Xinhua/Chen Wei)