The USA chopped more than a second off the championship record they set last year, winning the mixed 4x400m at the World ...

Canada made history on the second day of the World Athletics Relays Guangzhou 25, becoming the first ever World Relays mixed ...

The World Athletics Relays Guangzhou 25 is the main qualifying competition for relay events at the World Athletics ...

Nine months on from winning all three 4x400m relays at the Olympic Games, relays superpower USA couldn't quite match that ...