The first round of the Men's 4x400m relay will take place at 1135 today at the Olympic Stadium.
Rob Tobin from Basingstoke will be part of the Team GB team.
The women's basketball semi finals are taking place in the Basketball arena from 1700 with Stef Collins from Upper Heyford in Oxfordshire playing for Team GB.
Stacie Powell from Southampton will be taking part in the women's 10m diving today.
The semi final is taking place at the Aquatic Centre at 1000 with the finals at 1900.
The men's hockey semi finals will kick off at 1530 at the Riverbank arena.
Players will include:
Nicholas Catlin, who lives in Reading
Jonathan Clarke, who plays for Reading
Ben Hawes, from Lewes
Ashley Jackson, born Tunbridge Wells, plays for East Grinstead
Robert Moore, from Winchester
Richard Smith, from Portsmouth
James Tindall, from Virginia Water, Surrey
Luke Patience and Stuart Bithnell from Weymouth are in with a good chance of a medal in the final of the 470 sailing today. The start gun goes at 1300.
The semi final of the women's volleyball takes place at Earls Court at 1500.
Lucy Swindon from Swindon and Poole will be playing for Team GB.
The Bronze and Gold medal matches of the waterpolo will take place at 1840 and 2000 with Lisa Gibson from Chichester in West Sussex taking part.