worked for both sprinter and trainer. Bolt was more focused in practice, and a training schedule to boost his top speed and his stamina, in preparation for the Olympics, had improved both his 100 m and 200 m times. 2008 Summer Olympics Bolt doubled-up with the 100 metres and 200 metres events at the Beijing Summer Olympics. As the new 100 m world-record holder, he was the favourite to win both races. Michael Johnson, the 200 m and 400 m record holder, personally backed the sprinter, saying that he did not believe that a lack of experience would work against him. Bolt qualified for the 100 m final with times of 9.92 s and 9.85 s in the quarter-finals and semi-finals, respectively. In the Olympic 100 m final (16 August), Bolt broke new ground, winning in 9.69 s (unofficially 9.683 s) with a reaction time of 0.165 s. This was an improvement upon his own world record, and he was well ahead of second-place finisher Richard Thompson, who finished in 9.89 s. Not only was the record set with no favourable wind (0.0 m/s), but he also visibly slowed down to celebrate before he finished and his shoelace was untied. Bolt's coach reported that, based upon the speed of Bolt's opening 60 m, he could have finished with a time of 9.52 s. After scientific analysis of Bolt's run by the Institute of Theoretical Astrophysics at the University of Oslo, Hans Eriksen and his colleagues also predicted a sub 9.60 s time. Considering factors such as Bolt's position, acceleration and velocity in comparison with second-place-finisher Thompson, the team estimated that Bolt could have finished in 9.55±0.04 s had he not slowed to celebrate before the finishing line. Bolt stated that setting a world record was not a priority for him, and that his goal was just to win the gold medal, Jamaica's first of the 2008 Games. Olympic medallist Kriss Akabusi construed Bolt's chest slapping before the finish line as showboating, noting that the actions cost Bolt an even faster record time. IOC president Jacques Rogge also condemned the Jamaican's actions as disrespectful. Bolt denied that this was the purpose of his celebration by saying, "I wasn't bragging. When I saw I wasn't covered, I was just happy". Lamine Diack, president of the IAAF, supported Bolt and said that his celebration was appropriate given the circumstances of his victory. Jamaican