0544

Half Marathons Found

View all

Half Marathons 2025 - 2026

Running a good half marathon time is something every runner has on their 'To Do' list. Whether it’s a trail race or a road race, a 13.1 mile half marathon is the natural next step up from 10k, and one of the classic benchmarks to test yourself against. It's long enough to be a true test of fitness, stamina, pacing, form and mental strength but short enough to be within reach of anyone willing to train consistently for a couple of months.

Our database contains everything from small, locally organised half marathons to one of the biggest races on the planet - The Great North Run - which attracts over 50,000 runners and was the first mass participation event on the planet to reach 1 million cumulative participants. The findarace calendar lists over 350 half marathons every year all over the UK and beyond. So whether you’re after a low-key local race or the excitement of a major event, check out our comprehensive 2025 - 2026 calendar below and use the “Refine” button above to fine-tune your search.

Viewing this page in the default “Featured view” will show you all the Best Half Marathons in the UK. If you’re ready to set yourself a challenge right now then switching to “Bookable view” will show you those that can be booked instantly and securely through Find A Race. Guarantee your place today and get training :-)

If you’re ready to book, but not race prepared for the big day, check out our Half marathon kit list to ensure you’ve got everything you need.

Half Marathons 2025 - 2026

🚀Boosted

AEPG Great Eastern Run

Peterborough, Cambridgeshire
12 Oct 25
£18.90 - £39.00
4.5

BigXmas Trail Festival

Manchester, Lancashire
14 Dec 25
£27.80 - £47.97

CRYSTAL PALACE 5K 10K, HALF MARATHON & JUNIORS

London
14 Dec 25
£12.00 - £122.00
4.6

Richmond Park December 5k,10k and Half Marathon

London, Greater London
14 Dec 25
£25.00 - £30.00
4.5

Run Aintree Half Marathon, 10k & 5k

Liverpool, Merseyside
14 Dec 25
£30.00 - £152.00
4.7

LEE VALLEY VELOPARK - MILE, 5K, 10K, 10 MILE & HALF MARATHON

London, Greater London
20 Dec 25
£10.00 - £122.00
4.6

Christmas Canter - 5k, 10k, Half, Full or Ultra Marathon

Suffolk Running Centre, Church Road, Bury St Edmunds, IP29 5AX
20 Dec 25
£29.00 - £37.50

ATW Nottingham Holme Run

Holme Pierrepont County Park, Adbolton Lane, Holme Pierrepont, Nottingham, NG12 2LU
21 Dec 25
£21.20 - £38.16

Birmingham Running Festival 5k, 10k & Half Marathon

Sutton Coldfield, West Midlands
21 Dec 25
£12.00 - £162.00
4.8

A Christmas Carol Bobble Hat Run - Wales

Dare Valley Country Park, Aberdare, CF44 7PS
21 Dec 25
£18.00 - £40.00

Die Hard Christmas Jumpers Marathon & Half Marathon

Milton Keynes, Buckinghamshire
24 Dec 25
£36.99 - £44.99

Christmas Cracker Day Run

Wraysbury Skiff and Punting Club, Riverside, Egham TW20 0AA
25 Dec 25
£18.00 - £35.00

Boxing Day Challenge

Wraysbury Skiff and Punting Club, Riverside, Egham TW20 0AA
26 Dec 25
£30.00

Year End Time Turner

The Last Hop, Unit 2, Thames Edge, 15-18 Clarence St, Staines TW18 4SU
27 Dec 25
£18.00 - £35.00

Midwinter Mortimer Trail

Ludlow, Shropshire
27 Dec 25
£15.00 - £55.00

PHOENIX - Year End Marathon & Half Marathon

Sunbury on Thames, Middlesex
28 Dec 25
£33.50
5.0

PHOENIX - Frozen Phoenix

Sunbury on Thames, Middlesex
29 Dec 25
£27.00 - £40.00

Bell Challenge - Day 1

Exmouth, Devon
29 Dec 25
£35.00

Bell Challenge - Day 2

Exmouth, Devon
30 Dec 25
£35.00

PHOENIX - Winter Runderland

Sunbury on Thames, Middlesex
30 Dec 25
£27.00 - £40.00
4.0

Bell Challenge - Day 3

Exmouth, Devon
31 Dec 25
£35.00

Bell Challenge - Day 4

Exmouth, Devon
01 Jan 26
£35.00

New Years Day Run

The Last Hop, Unit 2, Thames Edge Court, Clarence Street, Staines, TW18 4SU
01 Jan 26
£18.00 - £35.00
5.0

Bell Challenge - Day 5

Exmouth, Devon
02 Jan 26
£35.00

FA Cup Run

Milton Keynes, Buckinghamshire
03 Jan 26 - 04 Jan 26
£36.99 - £42.99

Battersea Park Half Marathon

London
03 Jan 26
£40.00 - £182.00
4.7

Bridlington Day 1

The Ship Inn, Cliff Road, Sewerby, Bridington, YO15 1EW
03 Jan 26
£25.00 - £41.00

Bell Challenge - Day 6

Exmouth, Devon
03 Jan 26
£35.00

Bridlington Day 2

The Ship Inn, Cliff Road, Sewerby, Bridington, YO15 1EW
04 Jan 26
£16.00 - £41.00

Victoria Park Half Marathon, 10k & 5k

London
04 Jan 26
£28.00 - £162.00
4.7

Glasgow Green 5k/10k/Half Marathon

Glasgow, Lanarkshire
04 Jan 26
£20.00 - £25.00
4.8

Bell Challenge - Day 7

Exmouth, Devon
04 Jan 26
£35.00

Midweek Chasing Numbers Jan 2026

The Last Hop, Unit 2, Thames Edge Court, Clarence Street, Staines, TW18 4SU
09 Jan 26
£18.00 - £27.00
5.0

The Rasselbock Run - Winter 2026 - Day One

Mansfield, Nottinghamshire
10 Jan 26
£39.50
5.0

The Rise From The Ashes Run - South

The Last Hop, Unit 2, Thames Edge Court, Clarence Street, Staines, TW18 4SU
10 Jan 26
£18.00 - £35.00

PHOENIX - Doughnut Dash

Sunbury on Thames, Middlesex
11 Jan 26
£39.95
5.0

WTF - Where's The Finish? - 5k,10k, Half Marathon, Full Marathon & Ultra-Marathon

Brandon Country Park, IP27 0SU
11 Jan 26
£34.00 - £38.00
4.0

Central Lancashire New Year Half Marathon

Preston, Lancashire
11 Jan 26
£30.00
5.0

Birmingham Running Festival

Sutton Coldfield, West Midlands
11 Jan 26
£7.00 - £152.00
4.8

The Rasselbock Run - Winter 2026 - Day Two

Mansfield, Nottinghamshire
11 Jan 26
£39.50
5.0

Skipton Sweetie Skedaddle

Craven Leisure Centre, 21 Gargrave Rd, Skipton, BD23 1UD
11 Jan 26
£17.00 - £58.00
Showing 241-280 of 544 results
Prev
1 ... 4 5 6 7 8 9 10 ... 14
Next

Half Marathon FAQs

How long is a half marathon?

Half marathon races 21 kilometres, exactly half the distance of a full 26.2 miles. The average finishing time for a half in the UK is around 2:00 hours with more seasoned runners often pushing for 1 hour 30 minutes or less. This makes half marathons the perfect choice for runners looking to step up to a new challenge from 10k races and an important milestone for those on their way to running a full marathon. If you're looking for some inspiration goal setting, find out what a good half marathon time is in our guide.

Can you run a half marathon without training?

While it is physically possible to run a half marathon without training, we really wouldn’t recommend it. From both an enjoyment and health perspective, training correctly before embarking on a half marathon is going to lead you to have a much better experience.

Running a half marathon requires a significant level of endurance, stamina, and physical fitness. Without proper training, you are more likely to experience discomfort, fatigue, and the risk of injuring yourself is much higher. Training allows your body to adapt, get stronger and build stamina - everything you’ll need to enjoy the challenge of a half marathon race. Diet is also important, for more info take a look at our guide on what to eat before a half marathon.

Alternative Half Marathons

Looking for a half marathon you can take part in from anywhere - even indoors? Our virtual runs offer a range of distances and ways to challenge yourself whilst still running solo.

Fancy an active trip away? Check out our Running Holidays page which lists international running trips and breaks.

How many KM is a Half Marathon?

A half marathon is equivalent to 21.0975 kilometres (or approximately 13.1 miles). It is exactly half the distance of a full marathon, which is 42.195 kilometres or 26.2 miles.

If I can run a 10k, can I run a half marathon?

If you can successfully run a 10K (which is approximately 6.2 miles), you can definitely work your way up to running a half marathon. It is roughly twice the distance, so naturally, you’ll need to enhance the stamina and endurance you’ll have already built in running 10 kilometres. Following a structured training plan that allows for rest and increasing distance incrementally is the safest way to build up to the full 13.1 miles.

What types of Half Marathon are there?

There are two main types of Half Marathon events to participate in: Road Races and Trail Runs.

Road Half Marathons are the most traditional and popular type of half marathon. It takes place on paved roads or streets, typically in city or suburban areas with well-planned routes and water stations. Choose from a range of mass-participation Half Marathon events in London, Manchester, Birmingham and many more big cities and towns across the UK. These types of races also often have fantastic routes that pass iconic landmarks and tend to have buzzing crowds cheering runners on.

Trail Half Marathons are held on off-road trails in woodland settings or on hiking trails. They deliver a more scenic and natural experience but tend to be much more demanding due to the variety of terrain and uneven surfaces.