Half Marathons
A half-marathon is 13.1 miles or 21.1km long. It is a hugely popular distance, and the popularity is only growing. There are over 500 half marathons held in the UK each year, usually in the Spring and Autumn to make the most of the clement weather. Most events are held in big cities, and give a great opportunity to take in major landmarks while exercising. The Great North Run is the world's largest half-marathon, with over 57,000 runners each year. Other events can take you out into the stunning scenery of the UK's countryside, on rugged trails in national parks or along coastal paths. There are sure to be breathtaking views to take your mind off the running! People running their first half-marathon might want to aim for under 2 hours, while those who are experienced runners can set themselves the prestigious challenge of running a half marathon in under an hour and a half (90 minutes). A half-marathon tends to burn anywhere between 1,000 and 2,000 calories, so it's a great workout.
Nearby Half Marathons
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- The Festival of Endurance at Hever Castle3JUL2021
The Festival of Endurance at Hever Castle
Multi-Sport ‧ Hever Castle140.6 mi • 76.9 mi • 75.6 mi • 70.2 mi • 38.5 mi • 37.0 mi • 26.2 mi • 15.4 mi • 13.1 mi • 7.4 mi£30 – £270C-19 Plan(1) - MK Festival of Running7MAR2021
MK Festival of Running
Running ‧ Milton Keynes20.0 mi • 13.1 mi • 6.2 mi • 3.1 mi£8 – £31C-19 Plan(3) - Hackney Moves14MAY2021
Hackney Moves
Running ‧ London13.1 mi • 3.1 miFreeC-19 Plan(49) - ABP Southampton Marathon, Half, 10k & Mile24APR2021
ABP Southampton Marathon, Half, 10k & Mile
Running ‧ Southampton26.2 mi • 13.0 mi • 6.2 mi • 1.0 mi£7 – £44.99(5) - Quicksilver Hampton Court Half Marathon21FEB2021
Quicksilver Hampton Court Half Marathon
Half Marathon ‧ Thames Ditton13.1 mi£35.40 – £37.40C-19 Plan(76) - Coventry Festival of Running21MAR2021
Coventry Festival of Running
Running ‧ Coventry13.1 mi • 3.1 mi • 1.6 mi£15 – £38C-19 Plan(1) - Thorpe & Egham 10k & Half Marathon7FEB2021
Thorpe & Egham 10k & Half Marathon
Running ‧ Egham13.1 mi • 6.2 mi£26 – £30(80) - Weston Super Half28MAR2021
Weston Super Half
Half Marathon ‧ Weston-super-Mare13.1 mi • 1.0 mi£5 – £43(3) - Run Silverstone14FEB2021
Run Silverstone
Running ‧ Towcester13.1 mi • 6.2 mi • 3.1 mi£20 – £37C-19 Plan(3) - Hertfordshire Half Marathon & 10k - June5JUN2021
Hertfordshire Half Marathon & 10k - June
Running ‧ Stevenage13.1 mi • 6.2 mi£28 – £34 - Leicestershire Half Marathon28FEB2021
Leicestershire Half Marathon
Half Marathon ‧ Prestwold13.1 mi£30(10) - Trail Pursuit Marathon, Half Marathon, 10K & 5K28MAY2021
Trail Pursuit Marathon, Half Marathon, 10K & 5K
Running ‧ Clappersgate26.2 mi • 13.1 mi • 6.2 mi • 3.1 mi • 1.0 mi£10 – £44C-19 Plan - Liverpool Half Marathon & 10 Mile11SEP2021
Liverpool Half Marathon & 10 Mile
Running ‧ Liverpool13.1 mi • 10.0 mi£26 – £32C-19 Plan(3) - Snowdonia Trail Marathon10JUL2021
Snowdonia Trail Marathon
Running ‧ Caernarfon37.2 mi • 27.3 mi • 12.9 mi • 6.2 mi£28 – £81.95C-19 Plan(4) - Warrington Running Festival25SEP2021
Warrington Running Festival
Running ‧ Warrington13.1 mi • 6.2 mi • 3.1 mi • 0.6 mi£2 – £28 - Hampton Court Palace Half Marathon21MAR2021
Hampton Court Palace Half Marathon
Half Marathon ‧ Molesey13.1 mi£38(3) - Inverness Half Marathon15MAY2021
Inverness Half Marathon
Running ‧ Inverness13.1 mi • 3.1 mi£11 – £37 - Kempton Park Renaissance Run29MAY2021
Kempton Park Renaissance Run
Running ‧ Sunbury-on-Thames13.0 mi • 6.2 mi • 3.1 mi£20.40 – £37.40C-19 Plan - Cheltenham Running Festival - June12JUN2021
Cheltenham Running Festival - June
Running ‧ Cheltenham13.1 mi • 6.2 mi • 3.1 mi£22 – £28 - Birmingham Running Festival - February21FEB2021
Birmingham Running Festival - February
Running ‧ Sutton Coldfield13.1 mi • 6.2 mi • 3.1 mi£18 – £26 - Hertfordshire Half Marathon & 10k - November28NOV2021
Hertfordshire Half Marathon & 10k - November
Running ‧ Stevenage13.1 mi • 6.2 mi£28 – £34(7) - Weymouth Half Marathon21MAR2021
Weymouth Half Marathon
Half Marathon ‧ Weymouth13.1 mi£35 – £37C-19 Plan(6) - Worcester City Run - Half Marathon & 10K4SEP2021
Worcester City Run - Half Marathon & 10K
Running ‧ Worcester13.7 mi • 6.2 mi • 1.9 mi • 1.0 mi£8 – £40C-19 Plan(3) - Running Grand Prix Oulton Park- March 7MAR2021
Running Grand Prix Oulton Park- March
Running ‧ Little Budworth26.2 mi • 20.0 mi • 16.0 mi • 13.1 mi • 6.2 mi • 3.1 mi£22 – £32(40)
Showing 1 - 24 of 152 events
About half marathons in the UK
Half marathons are the among the most popular running events in the United Kingdom. A half marathon is a running race, usually taking place on roads (rather than trails), over a distance of 13.1 miles (21.1km). There are over 500 half marathons happening in the UK every year, including the largest half marathon in the world, the Great North Run which takes place in Newcastle in September and attracts more than 57,000 runners. If you're looking to make the jump to the full 26.2 miles, check out our list of UK marathons, or if you're after something shorter or want a training race, here is our calendar of 10k runs.
Frequently Asked Questions
What are the best half marathons in the UK?
There are a number of popular half marathons in the UK. For big crowds and closed roads, Hackney Half Marathon, Reading Half Marathon, Bath Half Marathon, The Big Half, and London Landmarks Half Marathon are popular spring choices. To enjoy the summer training, The Great Birmingham Run, Royal Parks Half, Cardiff Half, and, of course, the legendary Great North Run are amongst the biggest autumn races.
For something more local, there are hundreds of smaller races all over the country organised by local running clubs and race directors.
For something more local, there are hundreds of smaller races all over the country organised by local running clubs and race directors.
How far is a half marathon?
A half marathon is 13.1 miles or 21.1 km long, exactly half the length of a marathon.
What is the world record for a half marathon?
The men's world record for a half marathon is 58:01 minutes, held by Kenyan Geoffrey Kamworor, and the women's record is 64:51 minutes, set by Joyciline Jepkosgei, also from Kenya.
What is the fastest half marathon in the world?
Both the men’s and women’s world records for the half marathon were set at the Valencia Half Marathon in Spain.
What is the average finish time for half marathons?
The average half marathon finish time across all runners over the last few years is about 1h54m for men and 2h10m for women.
How long does it take to train for a half marathon?
Training for a half marathon takes at least 12 weeks for a beginner, approximately 8 weeks for an intermediate runner, and as little as 6 weeks for a more experienced runner already in the habit of running. There are many training plans available to prepare for a half marathon.