Exeter swimmer Liam Tancock launches his bid for Olympic gold at the Aquatics Centre in the Olympic Park this morning.Tancock swims in the heats of the 100m backstroke (11am), hoping to reach tonight's semi-finals (8.25pm).
Siobhan-Marie O'Connor is also in action this morning, with the Bath teenager in the heats of the 100m breaststroke (10.40am).
The GB eventing team complete the dressage stage of the competition today (10am), with Gloucestershire's Zara Phillips and Dorset's Williams Fox-Pitt scheduled to ride.
Team Bath duo Zara Dampney and Shauna Mullin launch their campaign in the beach volleyball (5.30pm).
Bristol-born goalkeeper Jack Butland is again looking to impress as the GB football team take on the United Arab Emirates (7.45pm).
Portishead gymnast Imogen Cairns is part of the GB team in today's qualification round (9.30am).
At Eton Dorney, reigning Olympic rowing champion Zac Purchase starts the defence of his title in the men's lightweight double sculls.Again paired with Mark Hunter, the Tewkesbury sculler is looking to bounce back from a disappointing season so far.
In the women's eight, Cornwall's Annie Vernon and Gloucestershire's Natasha Page are both in action as well.