Jen McIntosh will become the first Team GB athlete to compete for a medal at Rio 2016 in the women’s 10m Air Rifle as Day 1 of Rio 2016 gets underway.
The day also sees the historic return of rugby to the Olympic programme as the sevens format makes its debut. Team GB’s women will be in action taking on Japan and hosts Brazil in the first of two days of pool matches before Monday’s finals.
All eyes will turn to the Copacabana later in the day as the men’s road race concludes with Chris Froome looking to add to his third Tour de France victory last month with gold in the men’s road race.
The London 2012 time trial bronze medallist lines up alongside Geraint Thomas, Ian Stannard, Adam Yates and Steve Cummings with the race concluding at around 8pm BST.
The day also sees Team GB's women's hockey side take on Australia in their opening pool match, World Champion James Guy looking for a first swimming medal in the 400m freestyle.
Opening rounds are scheduled in the tennis, table tennis and boxing, Ashley McKenzie is the first judoka in action at the Games while our rowers take to the water in the first session of heats.
Men's qualification in the artistic gymnastics and equestrian dressage's Gemma Tattersall and William Fox-Pitt round off an action-packed opening day at Rio 2016.
What's on and when? Here's the day one beakdown...
Team GB at Rio 2016: Day 1
Men’s Light Fly 49kg R32: 11:00 Rio / 15:00 BST - Galal Yafai
Men’s Light 60kg R32: 18:00 Rio / 22:00 BST – Joe Cordina
Men’s Heavy 91kg R1: 19:00 Rio / 23:00 BST – Lawrence Okolie
Men’s Road Race: 9:30 Rio / 13:30 BST - Chris Froome, Geraint Thomas, Adam Yates, Steve Cummings, Ian Stannard
Eventing Individual Dressage Day 1: 10:40 BST / 14:40 BST - Gemma Tattersall
Eventing Team Dressage Day 1: 14:18 BST / 18.18 BST - William Fox-Pitt
Men’s Individual All Round qualification: 14:30 Rio / 18:30 BST – Max Whitlock, Louis Smith, Nile Wilson, Brinn Bevan, Kristian Thomas
Team GB Men vs Belgium pool match: 12:30 Rio / 16:30 BST
Team GB Women vs Australia pool match: 20:30 Rio / 12.30am BST
Men’s 60KG: 10:00 Rio / 14:00 BST - Ashley McKenzie
08:30-13:10 Rio / 12.30-17:10
Men’s Single Sculls Heats: Alan Campbell
Men’s Pair Heats: Stewart Innes, Alan Sinclair
Men’s Double Sculls Heats: John Collins, Jonathan Walton
Men’s Quadruple Sculls Heats: Sam Townsend, Peter Lambert, Angus Groom, Jack Beaumont
Men’s Lightweight Four Heats: Peter Chambers, Jono Clegg, Mark Aldred, Chris Bartley
Women’s Double Sculls Heats: Katherine Grainger, Vicky Thornley
Team GB women v Brazil: 12:00 Rio / 16:00 BST
Team GB women v Japan: 17:00 Rio / 21:00 BST
Women’s 10m Air Rifle: 08:30 Rio /12:30 BST Jen McIntosh
Afternoon: 13:00-15:25 Rio / 17:00-19:25 BST
Evening: 22:00-23:55 Rio / 02:00-03:55 BST
Men’s 400m Freestyle Heat (PM), Final (Eve) - James Guy, Stephen Milne
Men’s 100m Breaststroke Heats (PM), Semi-Final (Eve) - Adam Peaty, Ross Murdoch
Men’s 400m IM Heats (PM), Final (Eve) - Max Litchfield
Women’s 400m IM Heats (PM), Final (Eve) - Hannah Miley, Aimee Willmott
Men’s Singles Preliminaries: 19:45 Rio / 23:45 BST - Paul Drinkhall v TBC
Men’s Singles R1: Kyle Edmund vs J Thompson (AUS)
Men’s Doubles R1: Dom Inglot, Colin Fleming v S Gonzalez, MA Reyes-Varela (MEX)
Women’s Singles R1: Heather Watson vs S Peng (CHN)
Women’s Doubles R1: Heather Watson, Johanna Konta vs J Jankovic & A Krunic (SRB)