Overview
- Canada secured the inaugural mixed 4x100m relay gold with a season-best time of 40.30 seconds, beating Jamaica and Britain.
- Australia's mixed 4x400m team earned silver and set a new Oceanian record of 3:12.20, qualifying for the World Championships in Tokyo.
- Team USA failed to qualify for the mixed 4x100m final after a botched baton exchange but successfully defended their mixed 4x400m title with a championship-record time of 3:09.54.
- Jamaica's men's 4x100m team did not qualify for Tokyo after Julian Forte's injury caused a baton exchange failure, resulting in a DNF in the repechage round.
- India's men's and mixed 4x400m teams failed to secure World Championships qualification, finishing outside the top qualifying spots in their heats.