Racing comes easily to me, especially the 100 metres. That is why, no matter how fast I run the run the 100 metres, the 200 will always mean more to me, because of the effort I've put in.

I have to move on now as there is no point to dwell on the past. I have a few days to refocus and get ready for the 200 meters on Friday. After this I have the 4×100-meter and a few other races before the end of the season.

You can't really give away anything in your book ... should be exciting, it's my life, and I'm a cool and exciting guy.

It's a great feat for me to have broken my world record.

I have to show who I am, play with the crowd, play with the camera. When people come to a race, part of it is the anticipation, "What is he going to do?"

As long as I'm in great shape, nobody beats me, for sure.

The hard part for me is rest. I am a person who stays up late. If I go to bed early, I don't sleep, but I know I have to rest. That is always a struggle for me.