Alysson Felix won her 12th world title at the inaugural world championship 4x400 metres mixed relay race as as part of the United States 4x400m relay team. This was also her first title since becoming a mother. More Notably, Felix overhauled Usain Bolt’s record of 11 world titles. Felix had won her first gold as back as in 2005.
Felix ran the second leg of the U.S. team which included Wilbert London, Courtney Okolo and Michael Cherry. US TEAM won in three minutes 9.04 seconds, a world record for the new event.