Just 95 minutes after the first athlete steps foot on the Rio track, it will be time for the first final of the 2016 Games and what a final it will be - the women's 10,000 final has it all.
We break it down for you here:
Can Tirunesh Dibaba become the 1st woman to win 3 individual golds in the same event? Or will Almaz Ayana mark herself as the new world #1? Can defending world champ in Vivian Cheruiyot win her first Olympic gold? Can American Molly Infeld and or Molly Huddle medal? Will the American record go down?