Team GB golden girl Jessica Ennis enters the second and final day of the women's heptathlon with the weight of a nation on her shoulders while 10,000m runner Mo Farah should also be in the athletics mix for the home nation in the Olympic Stadium. Double amputee Oscar Pretorius – the South Africa 'Blade Runner' – makes history in the 400m heats while the fastest man in the world, Jamaica's Usain Bolt, makes his first appearance at London 2012 in the 100m heats. Bolt's countryman and main rival Yohan Blake will also be in action, as will Justin Gatlin and Asafa Powell. If things go according to plan for Team GB, there could be a deluge of medals on Day Eight: Helen Jenkins one of the favourites to win the women's triathlon in Hyde Park, the women's pursuit track cycling team are in action in the Velodrome while at Eton Dorney four medal events include the men's lightweight double skulls and the men's four. World number one trampoline gymnast Kat Driscoll – who used to work full time in a bank until two years ago – is up against the agile Chinese and Russian bouncers at the North Greenwich Arena.
Gold medals up for grabs: 25
Today's medal sports: triathlon, rowing, athletics, tennis, shooting, badminton, trampoline, track cycling, weightlifting, fencing, swimming