Flat Half marathons in October 2025
Find flat half marathons near me in October 2025 - 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 12 Oct
- FREE-£40
Manchester Half Marathon
Round off the season with a flat and fast half on fully closed roads with some of the best crowd support around and receive your chunky medal near Old Trafford.
- Trees not tees
- Wheelchair users
- Recycling
- Entertainment
- Chip timing
- Enter online
- Flat
- PB
- Traffic free
- Fancy dress
- Event village
- Urban
- Sustainability policy
- Age 17 & over
- 13.1 miles road running

- Sun 12 Oct
- £10-£30
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!
- Carbon neutral
- Wheelchair users
- Recycling
- Newcomers
- Entertainment
- Chip timing
- Enter online
- Flat
- PB
- Traffic free
- Fancy dress
- Event village
- Urban
- Park
- Sustainability policy
- Public transport links
- Age 16 & over
- 13.1 miles road running

- Sun 12 Oct
- £30-£44.50
Chelmsford Marathon & Half Marathon | Half Marathon
Don't miss out on one of the biggest running events in Essex; it's something special! Join runners as they go race, run, jog, and walk through Central Park and into the Essex countryside.
- Enter online
- Flat
- Age 17 & over
- 13.1 miles road running + 380 ft ascent

- Sun 12 Oct
- £37-£39
AEPG Great Eastern Run | Half Marathon
Thousands of runners of all abilities and ages will be welcomed back to the streets of Peterborough City Centre, for the return of the Great Eastern Run!
- Chip timing
- Enter online
- Flat
- PB
- Traffic free
- Age 17 & over
- 13.1 miles road running + 65 m ascent

- Sun 12 Oct
- £44.75-£50
- 8 charities
Bournemouth Half Marathon
Sun... Sea... Running as it should be. Run along both Boscombe and Bournemouth piers on a stunning coastal route as part of the Run Bournemouth weekend running festival.
- Chip timing
- Enter online
- Flat
- PB
- Traffic free
- Age 17 & over
- 13.1 miles road running + 101 m ascent

- Sun 19 Oct
- £10
Amsterdam Mizuno Half Marathon
The biggest half marathon in the Netherlands and part of the Amsterdam Marathon Weekend boasting a flat, fast course and an exciting Olympic Stadium finish.
- Flat
- PB
- Traffic free
- Age 17 & over
- 13.1 miles road running

- Sat 25 Oct
- £30-£32
Hubble Bubble & Ghostly 1 Mile | Day 1 | Half Marathon
A Halloween-themed running event you won't want to miss, bringing together runners of all abilities to share memories in what they love to do. Reach the finish to enjoy tasty Halloween treats.
- Enter online
- Flat
- PB
- Traffic free
- Age 17 & over
- 13.1 miles trail running + 144 ft ascent

- Sat 25 Oct
- £31
Monsal Trail October Half Marathon | Saturday
Take to one of the most iconic trails in the Peak District for stunning and traffic-free racing joy on a former Midland railway line taking you through four tunnels and across the spectacular viaduct!
- Enter online
- Flat
- Traffic free
- Age 17 & over
- 13.1 miles trail running + 2181 ft ascent

- Sun 26 Oct
- £30-£32
Hubble Bubble | Day 2 | Half Marathon
A Halloween-themed running event you won't want to miss, bringing together runners of all abilities to share memories in what they love to do. Reach the finish to enjoy tasty Halloween treats.
- Enter online
- Flat
- PB
- Traffic free
- Age 17 & over
- 13.1 miles trail running + 144 ft ascent

- Sun 26 Oct
- £31
Monsal Trail October Half Marathon | Sunday
Take to one of the most iconic trails in the Peak District for stunning and traffic-free racing joy on a former Midland railway line taking you through four tunnels and across the spectacular viaduct!
- Enter online
- Flat
- Traffic free
- Age 17 & over
- 13.1 miles trail running + 2181 ft ascent
- Sun 12 Oct
The Richmond Autumn Riverside 10K and Half Marathon Run | Half Marathon
- 13.1 miles multi terrain running
- Sun 12 Oct
Bath & Bristol Railway 10K, Half, 25K, Marathon and 50K | Half Marathon
- 13.1 miles road running
- Sun 12 Oct
Sparkasse 3-Country Marathon | Skinfit Half Marathon
- 21.1 km road running
- Sun 19 Oct
Henley Half Marathon | Half Marathon
- 13.1 miles road running
- Sun 26 Oct
Grand Canal Canter | Half Marathon
- 13.1 miles trail running + 90 ft ascent
- Sun 26 Oct
Run Leicester Festival Half Marathon and 10K | Half Marathon
- 13.1 miles road running
- Sun 26 Oct
Van Oers Marathon Brabant | Ibizz Half Marathon
- 21.1 km road running