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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

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THE LARKING GOWEN NORWICH HALF MARATHON

Norwich, Norfolk
Sun 23 Nov 25
£37.00
5.0

Cheshire Spring Half Marathon

Knutsford, Cheshire
Sun 15 Mar 26
£36.00

PHOENIX - Black Sheep Bimble

Walton-on-Thames, Surrey
Sat 21 Mar 26
£22.00 - £40.00

Moo-rathon, Calf and Hen K

Hyde Hall Farm, Buntingford, SG9 0RU
Sat 21 Mar 26
£29.00 - £36.00
5.0

The Ultra Loop - Run As Many 5km Loops As You Can in 8 hours

Manchester, Lancashire
Sat 21 Mar 26
£34.00
5.0

The Flying Fox

The Last Hop, Unit 2, Thames Edge Court, Clarence Street, Staines, TW18 4SU
Sat 21 Mar 26
£18.00 - £35.00

Hastings Half Marathon

Grosvenor Gardens, Sea Rd, Grosvenor Cres, Saint Leonards-on-sea TN38 0BX
Sun 22 Mar 26
£7.61 - £37.03

ATW Run Fest at Lee Valley

Lee Valley White Water Centre, Station Rd, Waltham Cross EN9 1AB
Sun 22 Mar 26
£29.68 - £38.16
5.0

Windsor Trail Run

Windsor, Berkshire
Sun 22 Mar 26
£32.00 - £162.00

Surrey Half Marathon

Woking, Surrey
Sun 22 Mar 26
£17.00 - £192.00

Gloucester Half Marathon & 10k

Gloucester, Gloucestershire
Sun 22 Mar 26 - Sun 29 Mar 26
£32.00 - £152.00

PHOENIX - Frogger Jogger

Walton-on-Thames, Surrey
Sun 22 Mar 26
£22.00 - £40.00

Elephant Challenge

Salcey Forest, NN7 2HX
Tue 24 Mar 26
Free - £39.00

Petzl Night Trails 10k - Salcey Forest

Northampton, West Northamptonshire
Tue 24 Mar 26
£18.00

Run the Wild Half Marathon - Spring

Tring, Hertfordshire
Sat 28 Mar 26
£55.00
5.0

Monsal Trail March Half Marathon & 10k Weekend

Bakewell Station, Bakewell, Derbyshire DE45 1GE
Sat 28 Mar 26 - Sun 29 Mar 26
£29.87 - £38.36

RunThrough USA Long Beach 5k,10k & Half Marathon Race Weekend

Long Beach, Los Angeles
Sat 28 Mar 26 - Sun 29 Mar 26
£32.00 - £44.00

Milkshake Meander

The Last Hop, Unit 2, Thames Edge Court, Clarence Street, Staines, TW18 4SU
Sat 28 Mar 26
£18.00 - £35.00

Yeovil Half Marathon 2026

Yeovil, Somerset
Sun 29 Mar 26
£37.25 - £39.25

Brett Lydd Half Marathon & 20 Mile

The Banks Sports & Social Club, Dennes Lane, Lydd, Romney Marsh, Kent, TN29 9JY
Sun 29 Mar 26
£33.06 - £35.17
5.0

RUN Battersea Park Half Marathon Spring

Battersea Park next to the Bandstand - SW11 4NJ
Sun 29 Mar 26
£33.11

Kilomathon 13.1k

Edinburgh
Sun 29 Mar 26
£27.25 - £29.75
5.0

Fraggle Run - North

Durham Amateur Rowing Club, Green Ln, Old Elvet, Durham, DH1 3JU
Sun 29 Mar 26
£18.00 - £29.00

ZIG ZAG Challenge - 5k, 10k, Half, Full & Ultra Marathon

Brandon Country Park, IP27 0SU
Sun 29 Mar 26
£34.00 - £38.00
5.0

The Eggcellent Easter Five in Five Days Series

The Last Hop, Unit 2, Thames Edge Court, Clarence Street, Staines, TW18 4SU
Thu 02 Apr 26 - Mon 06 Apr 26
£135.00

Eggcellent Easter Orange Run

Wraysbury Skiff and Punting Club, Riverside, Egham TW20 0AA
Thu 02 Apr 26
£18.00 - £35.00

The Eggcellent Easter Five in Five Days Series

The Last Hop, Unit 2, Thames Edge Court, Clarence Street, Staines, TW18 4SU
Thu 02 Apr 26 - Mon 06 Apr 26
£135.00

Eggcellent Easter Pink Run

Wraysbury Skiff and Punting Club, Riverside, Egham TW20 0AA
Fri 03 Apr 26
£18.00 - £35.00

Victoria Park Half Marathon, 10k & 5k

London
Fri 03 Apr 26
£28.00 - £162.00
4.7

The Enigma Easter Series

Milton Keynes, Buckinghamshire
Fri 03 Apr 26 - Sat 04 Apr 26
£35.99 - £42.99
5.0

Easter Challenge - 5k, 10k, Half, Full & Ultra Marathon

Suffolk Running Centre, Church Road, IP29 5AX
Fri 03 Apr 26
£35.00 - £38.00
5.0

Eggcellent Easter Green Run

The Last Hop, Unit 2, Thames Edge Court, Clarence Street, Staines, TW18 4SU
Sat 04 Apr 26
£18.00 - £35.00

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

Windsor, Berkshire
Sat 04 Apr 26
£30.00 - £162.00
4.3

The Pendine Sands Races

Carmarthen, Carmarthenshire
Sun 05 Apr 26
£29.00 - £300.00
5.0

Bunny Hop Races - Virtual

Ross-on-Wye, Herefordshire
Sun 05 Apr 26
£30.00 - £39.00

Lets Motor along the Towpath - Rodley

Leeds & Liverpool Canal, near to the Barge Pub, Rodley LS13 1HP
Sun 05 Apr 26
£26.00 - £56.00

Birmingham Running Festival 5k, 10k & Half Marathon

Sutton Coldfield, West Midlands
Sun 05 Apr 26
£12.00 - £162.00
4.8

Putney & Fulham Half Marathon

London
Sun 05 Apr 26
£41.51
4.9

Eggcellent Easter Purple Run

The Last Hop, Unit 2, Thames Edge Court, Clarence Street, Staines, TW18 4SU
Sun 05 Apr 26
£18.00 - £35.00

Leeds Running Festival April

Leeds, West Yorkshire
Sun 05 Apr 26
£28.00 - £162.00
4.8

ATW Stevenage Spring Half Marathon & 10k

Ridlins Athletics Track, Woodcock Rd, Shephall, Stevenage
Mon 06 Apr 26
£27.56 - £36.04
Showing 321-360 of 551 results
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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.