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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

Leeds Running Festival June

Leeds, West Yorkshire
07 Jun 26
£28.00 - £162.00
4.8

The Hardwick Hobble - Summer

Chesterfield, Derbyshire
13 Jun 26
£39.50
5.0

Bewl Water Summer

Wadhurst, East Sussex
13 Jun 26
£37.36 - £66.01
4.6

ATW St Albans Half Marathon #icelollyrun

Verulamium Park, St Albans AL1 2DL
14 Jun 26
£11.66 - £40.28
5.0

Roche Abbey Ramble

Travellers Rest, Main Street, Sheffield, S25 1YA
14 Jun 26
£26.00 - £42.00

Staffordshire Endurance Festival

Walsall, West Midlands
14 Jun 26
£30.00 - £182.00

Cheltenham Running Festival

Cheltenham, Gloucestershire
14 Jun 26
£12.00 - £152.00

Run Redditch Half Marathon & 10k

Redditch, Worcestershire
21 Jun 26
£12.00 - £142.00
5.0

Breezy in Brighouse & Special Solstice Run

Brighouse to be confirmed
21 Jun 26
£16.00 - £42.00

East Yorkshire Half Marathon and 10k

Hull, North Humberside
21 Jun 26
£34.00 - £182.00
4.8

Dunstable Downs Half Marathon

Dunstable, Bedfordshire
21 Jun 26
£35.00
4.8

Lord of The Run - North

Durham Amateur Rowing Club, Green Ln, Old Elvet, Durham, DH1 3JU
21 Jun 26
£18.00 - £29.00

Cock-a-doodle Dawdle - 5k,10k, Half Marathon, Full Marathon or Ultra Marathon

Hyde Hall Farm, Buntingford, SG9 0RU
27 Jun 26
£29.00 - £38.00

Peterborough Running Festival

Peterborough, Cambridgeshire
28 Jun 26
£30.00 - £152.00

RunThrough Marlow Trail Run

Marlow, Buckinghamshire
28 Jun 26
£28.00 - £34.00

2026 - Birmingham Black Country Half Marathon

Wolverhampton, West Midlands
04 Jul 26
£39.00
4.9

The Rasselbock Run - Summer 2026

Mansfield, Nottinghamshire
05 Jul 26
£39.50
5.0

Summer Ready Run - 5k,10k, Half Marathon, Full Marathon & ultra-marathon

Ferry Meadows, Ham Lane, Peterborough, PE2 5UU
05 Jul 26
£35.00 - £38.00

Chiltern Ridge Half Marathon

Aylesbury, Buckinghamshire
05 Jul 26
£35.00
4.3

Sithee at Slawit Again

Slaithwaite Community Centre, Bank Gate, Slaithwaite, Huddersfield HD7 5DL
11 Jul 26
£16.00 - £42.00

Run Aintree Half Marathon,10k & 5k

Liverpool, Merseyside
12 Jul 26
£30.00 - £152.00
4.7

Run Dorney Lake Half Marathon, 10k & 5k - July

Windsor, Berkshire
12 Jul 26
£30.00 - £162.00
4.2

Newcastle Half Marathon & 10k

Newcastle upon Tyne, Tyne and Wear
12 Jul 26
£30.00 - £152.00

Rasselbock Marathon and Half Marathon 2026

Mansfield, Nottinghamshire
12 Jul 26
£19.95 - £49.95
4.9

Norfolk Festival Of Running - 5k,10k, Half Marathon, Full & Ultra-Marathon

Bawsey Country Park, PE32 1EP
12 Jul 26
£29.00 - £38.00

The Railway Run Marathon, Half Marathon & 50km

Milton Keynes, Buckinghamshire
18 Jul 26
£36.99 - £42.99

Birmingham Running Festival

Sutton Coldfield, West Midlands
19 Jul 26
£12.00 - £162.00
4.8

Revesby Running Festival

Revesby Estate (North), Revesby, Boston. PE22 7NU
19 Jul 26
£16.45 - £64.67

Formula One Marathons, Half Marathon & 50km

Milton Keynes, Buckinghamshire
19 Jul 26
£36.99 - £42.99

Carlisle Half Marathon & 10k

Carlisle, Cumbria
19 Jul 26
£30.00 - £152.00

Great Barrow Challenge - 10 events in 10 days

Suffolk Running Centre, Church Road, Bury St Edmunds, IP29 5AX
23 Jul 26 - 01 Aug 26
£100.00 - £350.00
4.0

Great Barrow Challenge Day 2 - 5k, 10k, Half Marathon, Full Marathon or Ultra Marathon

Suffolk Running Centre, Church Road, Bury St Edmunds, IP29 5AX
24 Jul 26
£32.00 - £35.00

Great Barrow Challenge Day 3 - 5k, 10k, Half Marathon, Full Marathon or Ultra Marathon

Suffolk Running Centre, Church Road, Bury St Edmunds, IP29 5AX
25 Jul 26
£32.00 - £35.00

The Rasselbock 545

Oxford, Oxfordshire
25 Jul 26 - 26 Jul 26
£39.50 - £160.00

Maidenhead Trail Run

Maidenhead, Berkshire
26 Jul 26
£28.00 - £34.00

Great Barrow Challenge Day 4 - 5k, 10k, Half Marathon, Full Marathon or Ultra Marathon

Suffolk Running Centre, Church Road, Bury St Edmunds, IP29 5AX
26 Jul 26
£32.00 - £35.00

Run Dorney Lake Half Marathon, 10k & 5k - July

Windsor, Berkshire
26 Jul 26
£30.00 - £162.00
4.2

Hillsborough Castle & Gardens Running Festival Presented by Gateley

Hillsborough, County Down
26 Jul 26
£37.00 - £182.00
4.6

Great Barrow Challenge Day 5 - 5k, 10k, Half Marathon, Full Marathon or Ultra Marathon

Suffolk Running Centre, Church Road, Bury St Edmunds, IP29 5AX
27 Jul 26
£32.00 - £35.00

Great Barrow Challenge Day 6 - 5k, 10k, Half Marathon, Full Marathon or Ultra Marathon

Suffolk Running Centre, Church Road, Bury St Edmunds, IP29 5AX
28 Jul 26
£32.00 - £35.00
Showing 441-480 of 544 results

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.