Bronze medallist Simone Biles of the United States poses in front of the Olympic rings on August 3. — Reuters KARSTEN Warholm (R) of Norway breaks his own world record as he crosses the finish line to win the men’s 400 metres hurdles final at the Olympic Stadium on Tuesday.—Reuters TOKYO: Jamaica’s Elaine Thompson-Herah made history with the first women’s Olympic sprint “double-double” on Tuesday, as superstar gymnast Simone Biles stared down the dreaded “twisties” to bravely win bronze on a day that saw world records smashed and organisers investigate Belarus’ treatment of an athlete now in diplomatic protection.