I would like to run a marathon.
That is great! I know quite a bit about the London Marathon if you have any questions. 
When does it take place?
It takes place in London in the United Kingdom each year as part of the World Marathon Majors. 
How many people participate?
London Marathon
The London Marathon (currently known through sponsorship as the Virgin Money London Marathon) is a long-distance running event held in London, United Kingdom, part of the World Marathon Majors. The event was first run on 29 March 1981 and has been held in the spring of every year since. Since 2010, the race has been sponsored by Virgin Money.
The most recent event was the 2019 London Marathon on Sunday, 28 April 2019.
Overview.
The race was founded by the former
efforts is the annual “Big Picnic for Barretstown” which is supported by Avonmore. They also have a number of large corporate supporters including GlaxoSmithKline and Glanbia.
Many of the participants in the annual Dublin Marathon, which takes place on the last Monday in October each year take part in aid of Barretsown as it is one of the marathon's two designated charities, along with Special Olympics Ireland.
Volunteers.
Barretstown, like most non-profit organisations relies on volunteers in order to run their camps. They require