I'm Mark Foster, one of the world's top swimmers.

Watch my masterclass

In the past seven years I have dominated the front crawl and butterfly sprint events.

I have competed in four Olympics, broken eight world records and won five world championships in my career.

I still love swimming and am currently coaching myself to win a medal at the next Olympics.

Check out my front crawl masterclass and you too can be a star in the pool.

It does not matter what you do in training - you must turn it on when it matters Mark Foster Bath University