Large field marathons

Cardiff Half Marathon

With over 15,000 runners, the Cardiff Marathon is the best-attended road race in Wales.

Reading Half Marathon

Large marathon with an entry limit of 16,500 runners who all start and finish close by the Madejski Stadium.

Royal Parks Foundation Half Marathon

London’s “other” marathon is a pretty major event in its own right.

Belfast City Marathon

A big marathon with around 20,000 runners all enjoying a route around Northern Ireland’s capital city.

London Marathon

One of the world’s great marathons – as simple as that.