Flat Marathons in August 2026
Find flat marathons near me in August 2026 - filter by date, location or category, display on a map or use the advanced search to find your perfect race.
Filter by place
Filter by date
Next week
Next weekend
Feb
Mar
Apr
May
Jun
Jul
Sep
Oct
Nov
Dec
Winter
Spring
Summer
Autumn
All dates
Filter by category
MapEvent listings
Select an event for photos, video, route, location, reviews, entry fees and how to enter.
- Sun 9 Aug
- £16-£35
Great British Bake Run
Who doesn't like cake?! The Great British Bake Run is back for another year! The medal is a fantastic cupcake which doubles up as a magnet to go on your fridge!
- Road run
- 5K run
- 10K run
- Half marathon
- Marathon
- + 3 more races
- Sun 9 Aug
- £53-£55
Thames Meander Summer | Marathon
Previously rated one of the top 10 UK marathons by Runners World! Stunningly scenic riverside routes along the Thames towpath. Flat, fast and very runnable with great runner support.
- 26.2 miles trail running + 600 ft ascent
- Sat 15 Aug
- £40-£42
Sir Titus Summer Trot | 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.
- 26.2 miles trail running
- Sat 22 Aug
- £40-£42
Summer Extravaganza | Marathon
Soak up summer miles on a flat, fast canal towpath, with great support, generous treats and distances for every runner including marathon — a Yorkshire day out to remember.
- 26.2 miles trail running + 288 ft ascent
- Sun 30 Aug
- £16-£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 22 Aug
- £1,432-£1,455
Islandsbanki Reykjavik Marathon | Marathon
- 42.2 km road running