Usain Bolt captures fifth Olympic sprint double-double . `` To come here and get a world record is unbelievable , '' he said . Team USA wins women 's football gold to avenge the London 2012 Games loss . Great Britain 's women 's basketball , volleyball teams advances to gold medal matches . Team USA flyweight Ren Cancan takes the first ever women 's Olympic boxing gold medal .
Usain Bolt captures fifth Olympic sprint double-double . Team USA wins women 's football gold to avenge the London 2012 Games loss . Great Britain 's women 's basketball , volleyball teams advances to gold medal matches . Team USA flyweight Ren Cancan takes the first ever women 's Olympic boxing gold medal .