Team GB is 376 athletes strong, its biggest ever cohort to travel to an overseas games.
It means that medal opportunities will come thick and fast for Great Britain, with no shortage of opportunities on the first Sunday of the games.
Here are all the Team GB medal hopes and events taking place today...
What are GB's medal hopes today?
Lots of medals are up for grabs for Team GB today.
Archery
The women's team will go in the archery today, facing Italy in the elimination rounds at 1:30am (BST).
If successful, they will proceed to semi-finals and finals later in the day.