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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

THE LARKING GOWEN NORWICH HALF MARATHON

Norwich, Norfolk
Sun 23 Nov 25
£37.00
5.0

May We Challenge You

Exmouth, Devon
Sat 16 May 26
£36.00

Rocky at 50 Run

The Last Hop, Unit 2, Thames Edge Court, Clarence Street, Staines, TW18 4SU
Sat 16 May 26
£18.00 - £35.00

RACE THE TIDE

Plymouth, Devon
Sat 16 May 26
£42.00 - £72.00

The Birthday Run - 5k, 10k, Half, Full & Ultra Marathon

Billingford Lakes, North Elmham Road, NR20 4RG
Sun 17 May 26
£29.00 - £38.00

Sunderland City Runs

Sunderland, Tyne and Wear
Sun 17 May 26
£27.00 - £39.00
5.0

May We Challenge You Again!

Exmouth, Devon
Sun 17 May 26
£36.00

PHOENIX - Dragon's Eye Race 1 - 2026

Cranleigh, Surrey
Sun 17 May 26
£27.00 - £40.00
4.7

Essar Chester Half Marathon

Chester, Cheshire
Sun 17 May 26
£40.80
5.0

Eyam Half Marathon

Hope Valley, Derbyshire
Sun 17 May 26
£25.00
5.0

Wimbledon Half Marathon

London
Sun 17 May 26
£39.48
3.6

Dun Holm Challenge

Durham Amateur Rowing Club, Green Ln, Old Elvet, Durham DH1 3JU
Thu 21 May 26
£18.00 - £36.00

Dun Holm Challenge - Day 2

Durham Amateur Rowing Club, Green Ln, Old Elvet, Durham DH1 3JU
Fri 22 May 26
£18.00 - £36.00

Dun Holm Challenge - Day 3

Durham Amateur Rowing Club, Green Ln, Old Elvet, Durham DH1 3JU
Sat 23 May 26
£18.00 - £36.00

Farmmageddon - 5k - 10k - Half - Full - Ultra - 100 Mile Challenge

Hyde Hall Farm, Buntingford, SG9 0RU
Sat 23 May 26 - Sun 24 May 26
£35.00 - £165.00

Edinburgh Marathon Festival - Half Marathon

Edinburgh, Midlothian
Sun 24 May 26
£46.25
5.0

Dun Holm Challenge - Day 4

Durham Amateur Rowing Club, Green Ln, Old Elvet, Durham DH1 3JU
Sun 24 May 26
£18.00 - £36.00

Get the Hull out of Here

Pelican Park Recreation Ground, Lambwath Rd, Hull HU8 0EE
Sun 24 May 26
£16.00 - £42.00

Dun Holm Challenge - Day 5

Durham Amateur Rowing Club, Green Ln, Old Elvet, Durham DH1 3JU
Mon 25 May 26
£18.00 - £36.00

Midweek Medal Madness - Leon's Birthday Run!

The Last Hop, Unit 2, Thames Edge Court, Clarence Street, Staines, TW18 4SU
Fri 29 May 26
£18.00 - £27.00

Rocky at 50 Run - Wales

Dare Valley Country Park, Aberdare, CF44 7PS
Sat 30 May 26
£18.00 - £35.00

The Ultra Loop Track Challenge - 6, 12, 24 hours

Manchester, Lancashire
Sat 30 May 26 - Sun 31 May 26
£34.00 - £85.00
5.0

Newmarket Half Marathon

Newmarket, Suffolk
Sun 31 May 26
£34.00 - £162.00

Circuit du Sore Legs (Track Event)

Wodson Park Sports Centre, Ware, Herts, SG12 0UQ
Sun 31 May 26
£29.00 - £38.00

Midweek Chasing Numbers June 2026

Wraysbury Skiff and Punting Club, Riverside, Egham TW20 0AA
Fri 05 Jun 26
£18.00 - £27.00
5.0

Show me the Manet Marathons & Half Marathon

Milton Keynes, Buckinghamshire
Sat 06 Jun 26 - Sun 07 Jun 26
£34.99 - £42.99
4.5

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

Windsor, Berkshire
Sat 06 Jun 26
£30.00 - £162.00
4.3

TSUNAMI OCEAN TRAILS

Bude, Cornwall
Sat 06 Jun 26
£52.00 - £72.00

Jubilee Bridge Half Marathon & 10k

Runcorn, Cheshire
Sun 07 Jun 26
£34.00 - £162.00
4.0

Weybridge 5k, 10k, Half Marathon & Junior Race

Walton-on-Thames, Surrey
Sun 07 Jun 26
£14.00 - £182.00
4.8

The Rainbow Run 2026

Mansfield, Nottinghamshire
Sun 07 Jun 26
£39.50
4.5

Run Cumbria Solway Marathon / Half 2026

Carlisle, Cumbria
Sun 07 Jun 26
£29.00 - £34.00

The Summer Lucky Dip Run

The Last Hop, Unit 2, Thames Edge Court, Clarence Street, Staines, TW18 4SU
Sun 07 Jun 26
£18.00 - £35.00

Leeds Running Festival June

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

The Hardwick Hobble - Summer

Chesterfield, Derbyshire
Sat 13 Jun 26
£39.50
5.0

Bewl Water Summer

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

ATW St Albans Half Marathon #icelollyrun

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

The Hampshire Hoppit - Marathon, Half Marathon, and 10k

Basingstoke, Hampshire
Sun 14 Jun 26
£34.00 - £63.00
5.0

Cheddar Gorge Challenge (Marathon, Half, 10km, 6km, Fun Runs)

Bristol, Somerset
Sun 14 Jun 26
£8.10 - £75.60
4.7

Labyrinth 40th Anniversary Run

The Last Hop, Unit 2, Thames Edge Court, Clarence Street, Staines, TW18 4SU
Sun 14 Jun 26
£18.00 - £35.00
5.0

Staffordshire Endurance Festival

Walsall, West Midlands
Sun 14 Jun 26
£30.00 - £182.00
Showing 401-440 of 551 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.