How many half marathons in the United Kingdom are there?

42Cal currently lists 6 upcoming half marathons in the United Kingdom, from September 2026 through May 2027. The list updates automatically as new races are added to the calendar.

When do these races take place?

The next race is in September 2026 and the calendar runs through May 2027. Races are listed by date so the soonest events appear first.

How is this list chosen?

Every entry is an upcoming, non-cancelled race that matches the "Half Marathons in United Kingdom" criteria, pulled live from the 42Cal database and sorted by date. Past races drop off automatically.

All Collections

Race Collection

Half Marathons in United Kingdom

There are 6 upcoming half marathons in the United Kingdom on the 42Cal calendar, from September 2026 through May 2027. Course elevation gain starts as low as 131 ft, with a median of 492 ft across the field.

Upcoming races

September 2026 – May 2027

Date range

Countries

492 ft

Median elevation

The Races

6 races

Sep 13, 2026

Registration Closed

Great North Run

Newcastle upon Tyne to South Shields, Tyne and Wear, England

Also: 10K, 5K

Cardiff Half Marathon

Cardiff, Wales, United Kingdom

Also: Half Marathon

MBNA Chester Marathon

Chester Racecourse, Chester, England, United Kingdom

Marathon

Also: Half Marathon, 10K

See full guide

Apr 18, 2027

Registration Open

ABP Newport Wales Marathon

Newport riverfront (city-centre start/finish), Newport, Wales

Marathon

Also: Half Marathon, 10K

See full guide

May 2, 2027

Registration Open

Belfast City Marathon

Stormont Estate to Ormeau Park, Belfast, Northern Ireland

Marathon

Also: Marathon, Half Marathon, 10K, 5K

See full guide

May 30, 2027

Registration Open

Edinburgh Marathon

Edinburgh, United Kingdom

Marathon

Also: Half Marathon, 10K, 5K

See full guide

Compare These Races

Race	Date	Location	Distance	Elevation	Status
Great North Run	September 2026	Newcastle upon Tyne to South Shields, United Kingdom	Half Marathon	163 m	Registration Closed
Cardiff Half Marathon	October 2026	Cardiff, United Kingdom	Half Marathon	60 m	Registration Open
MBNA Chester Marathon	October 2026	Chester Racecourse, United Kingdom	Marathon	250 m	Registration Closed
ABP Newport Wales Marathon	April 2027	Newport riverfront (city-centre start/finish), United Kingdom	Marathon	40 m	Registration Open
Belfast City Marathon	May 2027	Stormont Estate to Ormeau Park, United Kingdom	Marathon	—	Registration Open
Edinburgh Marathon	May 2027	Edinburgh, United Kingdom	Marathon	150 m	Registration Open