The race has several components: it has a mass race for the public, professional races for men and women long-distance runners, elite level wheelchair races for men and a women, plus a 3-mile mini marathon event for under-17 athletes. The mass race is the largest marathon event in the United Kingdom and its third largest running event (after the Great North Run and Great Manchester Run). There is a significant charity running aspect to the marathon, with participants helping to raise over £1 billion since its founding, including £66.4 million at the 2019 London Marathon which was the highest amount for a single-day fund-raising event.