The Olympics is a special event and winning is very important. For me as a world record holder and world champion, the only thing I am missing is the Olympic gold medal and that is what I want to achieve in my career.

Even if the pace is slow in championships, you can still sprint well and still power in the last 200, which is always the main part when the race is slow.

My family means everything to me and the birth of our daughter has enabled me to have more focus on my career and every time I compete, I dedicate my success to them.

I was ready in 2008 for the Olympic Games but unfortunately I missed the Kenyan trials with a thigh injury. I watched those Olympics but it was tough to watch. But it was good in the end because a Kenyan, Wilfred Bungei, was the champion.

I was still young when I missed Beijing. I was favourite to win a medal but I knew I had time. My coach advised me to stay at school and finish my exams. Even if I had gone and won the Olympics, I might not have handled the pressure. So I moved on.

I missed the final of the World Championships in 2009, but I told the coach I would break the world record in 2010. Which I did. Then in 2011 I won the World Championships and now in 2012 it is the Olympics. That is how I have been working.

When I was a little boy, I always wanted to run. I loved competing with my friends.