Video: 2012 Olympic stadium opens Young spectator Niamh Clarke-Willis, aged 9, from east London won the right to join LOCOG chairman Sebastian Coe pressing the button to release hundreds of balloons into the sky and declared the stadium open for business. In the men's 100 metre race, eligible to UK athletics competitors, James Ellington, who became famous for putting himself up on the Ebay auction site to attract sponsors, won the event in a time of 10.30 seconds. The atmosphere was amazing. It was incredible - coming out it didn't hit me until I actually walked out of the mix zone onto the start line., and that's when it got to me," he said. Ellington also praised the track which he said was hard but seemed to have a slight spring. Five times Olympic gold medal-winner Steve Redgrave said: "A great night, a great crowd here and I can't wait for the real thing to happen in a few weeks time."