Marathons in the United Kingdom

18 marathons in the United Kingdom.

The next one is the Brighton Marathon on 4 April 2027.

The flattest is the Windsor Dorney Lakeside Marathon (10 m of climbing); the hilliest is the Beachy Head Marathon (1,150 m).

For cool racing conditions, the Southampton Marathon usually starts around 9°C.

The biggest field is at the London Marathon, with about 59,800 finishers.