Flat Half marathons in October 2026
Find flat half marathons near me in October 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 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
- Sun 18 Oct
- €60
Amsterdam Mizuno Half Marathon
Run the biggest half marathon of the Netherlands and experience stunning canals, lively streets, and iconic landmarks on a flat, fast course finishing in the city’s historic Olympic Stadium.
- 13.1 miles road running
- Sat 24 Oct
- £36
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!
- 13.1 miles trail running + 1972 ft ascent
- Sun 25 Oct
- £37.50-£39.50
Wight Lines
Enjoy stunning coastal views on this flexible-distance run at Milford on Sea, following an out-and-back route beside Sturt Pond and the Isle of Wight — perfect for all abilities.
- 7 hrs trail running + 47 ft ascent
- Sun 25 Oct
- £36
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!
- 13.1 miles trail running + 1972 ft ascent
- Sat 31 Oct
- £30-£32
Hubble Bubble & Ghostly 1 Mile | Half Marathon
A Halloween-themed half marathon 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.
- 13.1 miles trail running + 144 ft ascent
- Sun 4 Oct
- £42.50-£44.50
Kingston Half Marathon
- 13.1 miles multi terrain running
- Sun 4 Oct
- €34-€42
Rural Kutxa San Sebastian Half Marathon
- 21.1 km road running
- Sun 11 Oct
- £31-£39
Run Leicester Festival Half Marathon and 10K | Half Marathon
- 13.1 miles road running
- Sun 25 Oct
- £32-£34
Windsor Dorney Lakeside Half Marathon
- 13.1 miles road running