Italy, Canada (40.90s), and Jamaica (41.04s) impressed in the mixed 4x100m relay’s global debut at the World Athletics Relays, all advancing to the final.
The US experienced a setback in this event due to a botched baton exchange.
However, the Americans rebounded in the mixed 4x400m, securing their spot in the final and the Tokyo World Championships.
Joining them will be Belgium, Australia, Ireland, Britain, South Africa, Kenya, and Poland.
Spain led the women’s 4x100m qualifiers (42.18s), while South Africa’s men clocked a joint world-leading 37.84s in their event, matched by Japan.
The US women topped the 4x400m timings, while their male counterparts await Sunday to qualify for the worlds.
South Africa’s men were fastest in the 4x400m with a world-leading 3:00.00.
