A look at some key facts from the London Olympic Games.
Kenya's David Rudisha stormed to victory in the Olympic 800 metres final on Monday, retaining his title with a devastating final-lap sprint.
World record holder David Rudisha of Kenya and Ethiopia's defending champion Mohammed Aman cruised through the heats for the 800 metres on a hot and humid opening morning at the world athletics championships in Beijing on Saturday.
Kenyan athletes are in danger of hitting the wall unless traditional training methods are replaced with more modern thinking, according to the coach of Olympic 800 metres champion David Rudisha.
Olympic champion and world record holder David Rudisha ran from the front and trusted his finishing pace to regain the world 800 metres title at the World Athletics Championships in Beijing, on Tuesday.
Bahrain's Ruth Jebet blew away the competition to win the women's 3,000 metres steeplechase gold on Sunday, but narrowly missed out on the world record. Jebet ran a bold race, bursting into the lead after a few laps and setting a blistering pace to win in 8 minutes, 59.75 seconds, just shy of the 8:58.81 world record set by Russia's Gulnara Galkina at the 2008 Beijing Games.