Flat Half marathons in March 2026
Find flat half marathons near me in March 2026 - filter by date, location or category, display on a map or use the advanced search to find your perfect race.
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- Sun 8 Mar 2026
- £20-£35
- 7 charities
TTP Cambridge Half Marathon
Run 13.1 unforgettable miles through Cambridge’s historic streets and iconic University grounds on a flat, fast-paced course perfect for supporting a charity cause and chasing a personal best.
- Recycling
- Newcomers
- Chip timing
- Enter online
- Flat
- Traffic free
- Fancy dress
- Event village
- Urban
- Park
- Rural
- Sustainability policy
- Public transport links
- Age 17 & over
- 13.1 miles road running
- Sun 8 Mar 2026
- £34-£36
ATW Nottingham Holme Run | Half Marathon
Join this fantastic experience on a completely flat course – perfect for achieving your personal best over a certified, accurate route, with free race photo, custom medal and friendly support!
- Enter online
- Flat
- PB
- Traffic free
- Age 17 & over
- 13.1 miles road running + 13 ft ascent
- Sat 14 Mar 2026
- £29-£31
Spring Time Canal Canter | Half Marathon
Fast, flat, PB-grabbing event on traffic-free trails and the canal towpath with a bespoke medal and treats at the finish line. All levels of runner welcome.
- Chip timing
- Enter online
- Flat
- PB
- Traffic free
- Age 17 & over
- 13.1 miles trail running + 144 ft ascent
- Sun 15 Mar 2026
- £20-£57
- 8 charities
Hampton Court Palace Half Marathon
Experience an unforgettable half marathon through the regal grounds of Hampton Court Palace.
- Recycling
- Newcomers
- Chip timing
- Enter online
- Flat
- Event village
- Urban
- Park
- Rural
- Free venue entry
- Sustainability policy
- Public transport links
- Age 17 & over
- 13.1 miles multi terrain running
- Sun 15 Mar 2026
- £38-£40
- 2 charities
Liverpool Half Marathon & 10 Miler | Half Marathon
Entries for the 2026 BTR Liverpool Half Marathon & 10 Miler are now open.
- Enter online
- Flat
- Traffic free
- Age 17 & over
- 13.1 miles road running + 359 ft ascent
- Sun 15 Mar 2026
- £56.50
- 21 charities
GetPRO Bath Half
Run through traffic-free streets in the heart of Bath and experience the electric atmosphere on the course through the UK's only World Heritage City!
- Trees not tees
- Wheelchair users
- Recycling
- Plastic bottle free
- Entertainment
- Ballot
- Chip timing
- Enter online
- GPS tracking
- Fundraising required
- Flat
- PB
- Traffic free
- Event village
- Urban
- Park
- Sustainability policy
- Public transport links
- Plastic-free event
- Age 17 & over
- 13.1 miles road running + 239 ft ascent
- Sun 22 Mar 2026
- £40
The Hospice Half Marathon
Run a half marathon on the island of Jersey from St Ouen in the west to the capital, St Helier, in the south along a fantastically flat and scenic course with a 5K downhill into the finish!
- Newcomers
- Chip timing
- Enter online
- Flat
- PB
- Event village
- Age 17 & over
- 13.1 miles road running
- Sun 22 Mar 2026
- £32-£34
ATW Run Fest at Lee Valley | Half Marathon
Smash your personal best on a traffic-free, flat and fast course from the White Water Centre and into surrounding beautiful regional parkland with a custom-designed medal for finishers.
- Enter online
- Flat
- PB
- Traffic free
- Age 17 & over
- 13.1 miles road running + 79 ft ascent
- Sun 29 Mar 2026
- £45.50-£52.50
- 2 charities
Kew Gardens Half Marathon
The Kew Half Marathon starts inside Kew Gardens and every runner will receive a fantastic medal, a technical running t-shirt (male and female cut) and free entry into the gardens!
- Chip timing
- Enter online
- Flat
- Traffic free
- Age 17 & over
- 13.1 miles road running + 85 m ascent
- Sun 29 Mar 2026
- £29-£31
Sir Titus March Mayhem | Half Marathon
Spring along the Leeds and Liverpool Canal with the Spring Tide Sir Titus Trot along the flat, even towpath. Perfect for all abilities, it tends to sell out very quickly.
- Chip timing
- Enter online
- Flat
- Age 17 & over
- 13.1 miles trail running + 253 ft ascent
- Sun 29 Mar 2026
- £31
Brett Lydd Half Marathon
A delectable racing experience perfect for those planning a spring marathon, over a pancake flat course using the wide, quiet country lanes surrounding the marsh town of Lydd in Kent.
- Chip timing
- Enter online
- Flat
- PB
- Age 17 & over
- 13.1 miles road running + 104 ft ascent
- Sun 29 Mar 2026
- £29-£31
RUN Battersea Park Half Marathon Spring
Lace up your trainers and RUN Battersea Park Half which will be a scenic and energising experience on a pancake-flat course for all abilities with beautiful views of green spaces and the River Thames.
- Newcomers
- Chip timing
- Enter online
- Flat
- PB
- Event village
- Park
- Age 18 & over
- 13.1 miles road running
- Sun 1 Mar 2026
London Half and 10K Presented by TREK | Half Marathon
- 21.1 km road running + 117 m ascent
- Sun 8 Mar 2026
Great Welsh Marathon Events | Half Marathon
- 13.1 miles road running + 240 ft ascent
- Sun 8 Mar 2026
Lambert & Foster Paddock Wood Half Marathon
- 13.1 miles road running
- Sun 15 Mar 2026
Milton Keynes Festival of Running | Half Marathon
- 13.1 miles road running
- Sun 22 Mar 2026
Twin Lakes 20 | 20 Mile
- 20 miles multi terrain running
- Sun 22 Mar 2026
Run Carlisle Half Marathon and 10K | Half Marathon
- 13.1 miles road running
- Sun 22 Mar 2026
Waters Wilmslow Running Festival | The Asics Half Marathon
- 13.1 miles road running + 386 ft ascent
- Sun 22 Mar 2026
Canalathon-Ultra Running Festival | Half marathon
- 13.1 miles road running + 48 m ascent