One of the world's big 5, the London Marathon is a must do for all serious distance runners.

The first London Marathon was held on 29 March 1981, more than 20,000 applied to run. 6,747 were accepted and 6,255 crossed the finish line on Constitution Hill. The Marathon's popularity has steadily grown since then. In 2009 35,266 people crossed the line, the biggest field since the race began. 746,526 people have completed the race since its inception

Ways to enter

1. The public ballot - Entries now take place online only shortly after the previous years race has been run.

2. Charity place - Lots of charities have guaranteed places available. You will need to raise sponsorship money though (please don't pester your club mates).

3. Club's guaranteed entry procedure (see above link).

The Marathon distance = 26 miles and 385 yards or 26.2187 miles or 46,145 yards or 42.195 km