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Half Marathons 2024 - 2025

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 2024 - 2025 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 2024 - 2025

The "Other" Run

Suffolk Running Centre
27 Apr 25
£25.00 - £37.50

Shakespeare Marathon & Half Marathon

Stratford upon Avon, Warwickshire
27 Apr 25
£36.00 - £162.00
4.9

Surrey Hills Half Marathon

Guildford, Surrey
27 Apr 25
£20.00

Northstowe Half Marathon

Cambridge, Cambridgeshire
27 Apr 25
£30.00
4.8

The Leeds Backyard Taster Event

Leeds, West Yorkshire
27 Apr 25
£39.50

PHOENIX - NOT the London Marathon Run 2025

Sunbury on Thames, Middlesex
27 Apr 25
£39.95

Midweek Chasing Numbers May 2025

Egham, Surrey
02 May 25
£24.00 - £34.00

Bat Challenge

Loughborough
02 May 25 - 03 May 25
£39.00

Mid Sussex Marathon Weekend

East Grinstead, Haywards Heath, Burgess Hill
03 May 25 - 05 May 25
£6.59 - £72.60

Newcastle-Gateshead Marathon, Half Marathon,10k & Juniors

Gateshead, Tyne and Wear
04 May 25
£7.00 - £152.00
5.0

MK Marathon Weekend

Stadium MK, Stadium Way Milton Keynes, BUCKS MK1 1ST United Kingdom
04 May 25 - 05 May 25
£13.05 - £138.92

Glasgow Green - 5k/10k/Half Marathon

Glasgow, Lanarkshire
04 May 25
£20.00 - £25.00

Worthing Runfest Half Marathon & 10K 2025

Worthing, West Sussex
04 May 25
£34.50 - £39.50
4.8

VICTORIA PARK 5K, 10K & HALF MARATHON

London
04 May 25
£28.00 - £152.00
4.7

Bank Holiday Madness May 2025

Staines, Middlesex
05 May 25
£24.00 - £34.00

May We Challenge You

Exmouth, Devon
10 May 25
£32.00

BEWL WATER 10KM, HALF MARATHON & ULTRA 50KM

Tunbridge Wells, Lamberhurst, East Sussex
10 May 25
£37.32 - £66.01
4.5

The All Nations 5k, 10k and Half Marathon Run

Windsor, Buckinghamshire
10 May 25
£22.00 - £25.00
4.4

Battersea Park Half Marathon

London
10 May 25
£37.00 - £162.00
4.8

PHOENIX - Rose Run

Dorking, Surrey
10 May 25
£22.00 - £39.95

Collingbourne Races

Crawlboys farm, Ludgershall, SP11 9PR
10 May 25
£21.44 - £32.04
4.7

Zig Zag Marathon and Half

Suffolk Running Centre
11 May 25
£29.00 - £37.50

Race to the Base 2025

Assynt Leisure Centre, Lochinver, IV27 4JP
11 May 25
£30.00

The Drop - York

Up & Running, 9 Colliergate, York, YO1 8BP
11 May 25
£47.97 - £58.59

Birmingham Running Festival 5k, 10k & Half Marathon

Sutton Coldfield, West Midlands
11 May 25
£7.00 - £152.00
4.7

Sunderland City Runs

Sunderland, Tyne and Wear
11 May 25
£28.50 - £38.50
5.0

May We Challenge You Again!

Exmouth, Devon
11 May 25
£32.00

Northants Shires & Spires Event

Northampton, Northamptonshire
11 May 25
£25.20 - £61.00
4.9

Run Aintree 5k, 10k & Half Marathon

Liverpool, Merseyside
11 May 25
£26.00 - £132.00
4.6

Excalibur Trail Races, 10km, half marathon and marathon

11 May 25
£35.00 - £45.00

Great Manchester Run 10k & Half

Manchester, Greater Manchester
18 May 25
£19.00 - £25.00
4.9

Colchester Zoo Stampede 10k

Colchester, Essex
18 May 25
£42.00 - £182.00
5.0

Hackney Half Marathon

London
18 May 25
£30.00
5.0

PHOENIX - Dragon's Eye Race 1

Cranleigh, Surrey
18 May 25
£27.00 - £40.00
5.0

The Birthday Run

Hinchingbrooke Country Park
18 May 25
£33.00 - £36.00

Easy Does It Run

Staines, Middlesex
18 May 25
£27.00 - £40.00

Essar Chester Half Marathon

Chester, Cheshire
18 May 25
£48.80
5.0

Aladdin Sane 5 in 5 Days - Day 1

Durham, County Durham
22 May 25
£24.00 - £34.00

Run2Paris May 2025

London
22 May 25 - 25 May 25
£950.00

Aladdin Sane 5 in 5 Days - Day 2

Durham, County Durham
23 May 25
£24.00 - £34.00
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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.