These are the Britons to get behind on the third day of the Olympic Games:
Guy will be hoping to medal in the 200 metres freestyle final, should he make it through the semi-final, but it will be another late one - around 2:20am BST on Tuesday morning.
Daley is set to make his first appearance at Rio 2016 in the men's 10m synchro at a more reasonable time of 8pm on Monday evening alongside Dan Goodfellow.
The men's gymnastics team
The men's team gymnastics final also takes place from around 8pm with Britain looking to upgrade on the bronze won at London 2012.
Earlier on Monday, the women's -57kg judo will include Commonwealth champion Smythe-Davis while Great Britain's women will be hoping to contest the first-ever rugby sevens final at 11pm at Deodoro Stadium.