Flat Half marathons in UK
Find flat half marathons in UK in 2026/2027 - filter by date, location or category, display on a map or use the advanced search to find your perfect race.
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MapEvent listings
Select an event for photos, video, route, location, reviews, entry fees and how to enter.
- Sat 4 Jul
- £30-£35
FixAddiction Half Marathon
A superb summer's day of running at the stunning Olympic venue which boasts fast, flat courses with closed roads. Get together with friends, family or colleagues and be part of this great event!
- 13.1 miles road running
- Sun 5 Jul
- £15-£35
Will Run For Ice Cream
A run that you don't want to miss! The medal is incredible, and you can celebrate your achievements with some well-deserved ice cream!
- Road run
- 5K run
- 10K run
- Half marathon
- Marathon
- + 3 more races
- Sat 11 Jul
- £15-£35
Ooops I Ran It Again
Who hasn't completed a race, sworn they will never run again and then booked onto another one the following day?!
- Road run
- 5K run
- 10K run
- Half marathon
- Marathon
- + 3 more races
- Sun 9 Aug
- £43-£45
Thames Meander Summer | Half Marathon
Stunningly scenic riverside route along the Thames towpath. Flat, fast and very runnable with great runner support. The marathon on the same day was previously rated one of the top 10 UK marathons.
- 13.1 miles trail running + 300 ft ascent
- Sun 9 Aug
- £23-£35
Great British Bake Run | Half Marathon
Who doesn't like cake?! The Great British Bake Half Marathon Run is back for another year! The medal is a fantastic cupcake which doubles up as a magnet to go on your fridge!
- 13.1 miles road running
- Sat 15 Aug
- £28-£30
Sir Titus Summer Trot | Half Marathon
Enjoy a trip up the Leeds and Liverpool Canal this summer over a range of distances, all along the flat and even towpath. This event is perfect for runners of all abilities.
- 13.1 miles trail running + 253 ft ascent
- Sun 16 Aug
- £31-£33
Clacton Half Marathon
It's the crash of waves and the sea-salt that lingers in the cool coastal air. It's your moment to fly along the promenade in this cracking half marathon. It's a seaside racing extravaganza!
- 13.1 miles road running + 180 ft ascent
- Sun 16 Aug
- £46.75
Scottish Half Marathon
A seriously flat and rapid point-to-point course with a downhill profile along the coast to finish in the final furlong of Scotland's oldest racecourse plus grandstand finish. Come and be part of it!
- 13.1 miles road running + 57 m ascent
- Sat 22 Aug
- £30-£32
Summer Extravaganza | Half Marathon
Soak up summer miles on a flat, fast canal towpath, with great support, generous treats and distances for every runner including half marathon — a Yorkshire day out to remember.
- 13.1 miles trail running + 144 ft ascent
- Sun 30 Aug
- £15-£29
GNR & Time Turner | Durham
Whether you're looking to get some miles under your belt before The Great North Run or you just fancy a run along the beautiful River Wear, then this is the event for you!
- Trail run
- 5K run
- 10K run
- Half marathon
- Marathon
- + 3 more races
- Sat 5 Sep
- £30-£32
Hip Hip Hooray it's Hornsea | Half Marathon
We all love to be beside the seaside, so why not enjoy a trail half marathon from the coast at Hornsea? You can grab yourself fish and chips and an ice cream from the front after the race.
- 13.1 miles trail running + 161 ft ascent
- Sun 6 Sep
- £15-£35
The Big Half
The Big Half promises a party atmosphere on a landmark-packed, half marathon route which follows some of the famous marathon course in reverse!
- 13.1 miles road running + 218 ft ascent
- Sun 6 Sep
- £35-£37
Bedford Half Marathon
13.1 miles of traffic free, stunning Bedfordshire countryside followed by a festival village with live music, street food, yoga, entertainment and more at the unforgettable post-race party.
- 13.1 miles road running + 59 ft ascent
- Sun 13 Sep
- £43-£50
Richmond Half Marathon
Be part of London's most exclusive event! Run through its greenest borough, exploring the beauties and history of Richmond. Start inside the Kew Gardens with a family music festival to finish!
- 13.1 miles road running + 91 ft ascent
- Sat 19 Sep
- £30-£32
Oktoberfest | Half Marathon
Get your Oompah vibe on and enjoy a trip up the Leeds and Liverpool Canal. A half marathon to warm the depths of your heart along the flat, even towpath - this event is perfect for all abilities.
- 13.1 miles trail running + 105 ft ascent
- Sun 27 Sep
- £37.50-£39.50
SoBo Series | Volume 4 | Stop me (if you think you've heard this one before)
Set along the beachfront promenade at Southbourne (SoBo), choose your own distance from 5K to ultra, along this flat, tarmacked, lapped route suitable for all abilities.
- 7 hrs road running
- Sun 27 Sep
- From £25
Folkestone Rotary Half Marathon
This ever popular race promises amazing coastal views and a relatively flat coastal promenade run with real PB potential.
- 13.1 miles road running + 469 ft ascent
- Sun 4 Oct
- £10-£95
Manchester Half Marathon
Round off your season with a flat, fast half on closed roads, roaring crowd support, and a well-earned chunky medal near Old Trafford.
- 13.1 miles road running + 64 m ascent
- Sun 4 Oct
- £43-£45
Thames Meander Autumn | Half Marathon
Stunningly scenic riverside route along the Thames towpath. Flat, fast and very runnable with great runner support. The marathon on the same day was previously rated one of the top 10 UK marathons.
- 13.1 miles trail running + 300 ft ascent
- Sun 4 Oct
- £5-£60
Oysho Cardiff Half
An iconic road race around Wales' capital offering a flat course from the castle to the marina and over the Cardiff Bay barrage!
- 13.1 miles road running + 81 m ascent
- Sun 11 Oct
- £66
Royal Parks Half Marathon
Run through four of London’s most beautiful Royal Parks, past iconic landmarks and tree-lined avenues, on a stunning autumn route that combines city energy with natural splendour.
- 13.1 miles road running + 88 m ascent
- Sun 11 Oct
- £15-£130
Oxford Half Marathon
Runners will enjoy the fast, flat and beautiful route through University Parks and the historic Oxford City Centre whilst celebrating running and movement with entertainment and cheering fans!
- 13.1 miles road running
- Sun 11 Oct
- £36-£54
Chelmsford Half Marathon
Don't miss out on one of the biggest half marathons in Essex; it's something special! Join runners as they go race, run, jog, and walk through Central Park and into the Essex countryside.
- 13.1 miles road running + 331 ft ascent
- Sun 11 Oct
- £38-£40
AEPG Great Eastern Run | Half Marathon
Race through historic streets and vibrant crowds, chasing your personal best on a fast, flat course and experience electrifying support and unforgettable moments in this celebrated running challenge.
- 13.1 miles road running + 65 m ascent
- Sun 11 Oct
- £46.25-£51.50
Bournemouth Half Marathon
Sun, sea and 13.1 miles of stunning coastline — a spectacular half marathon taking you across both Bournemouth piers, as the headline event of the Run Bournemouth running festival!
- 13.1 miles road running + 101 m ascent