At big championships it's not the fastest person, it's the person who gets it right on the day.

We, as athletes, have our suspicions about who's cheating, but I'm not convinced that the testing has yet caught up with what people are using or what they are using to disguise it.

In the marathon anything can happen.

I have achieved a lot and I'm grateful for that - I'm just a bit greedy because I want to add the Olympics. It's once every four years - everyone wants it and very few people get it.

To represent your country at a home Olympics is something special and I'm over the moon to be selected for Team GB. I was pleased to get the qualifying time in Berlin earlier this year and my sole focus is getting in the right shape for London.

Go in any direction..seeking out new sights just on the strength of your feet and the courage of your lungs.

I've had a lot of success over the years racing in New York, but the main point is that I feel the marathon is a different event, a lot more my event.