Flat 5K runs in South East
Find flat 5k runs in South East in 2026/2027 - 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
Filter by category
MapEvent listings
Select an event for photos, video, route, location, reviews, entry fees and how to enter.
- Fri 4 Sep
- £16
Rye Summer 5K Series | Race Five | 5K
Enjoy every spellbinding step of a 5K through the stunning landscape of Rye Harbour Nature Reserve in this exceptional summer series. Enter one or enter more and watch your times improve.
- 5 km road running
- Sat 17 Oct
- £27-£30
AJ Bell Great South 5K
Kicking off the famous weekend of running on a route with beautiful views across the Solent, an incredible atmosphere, lovely fresh sea air and a fast and flat route with PB potential.
- 5 km road running
- 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 8 Nov
- £20-£32
Remembrance Day Run | South | 5K
Your chance to remember those who have given the ultimate sacrifice during conflicts around the world, with a two-minute silence, 5K run, then a Remembrance medal and goody bag at the finish.
- 5 km trail running
- Sat 26 Dec
- £16-£18
Boxing Day Challenge | 5K
Come and join the day of running and aim to complete a 5K at your own pace on a flat, out-and-back route along the River Thames then receive a bespoke medal and goody bag at the finish!
- 5 km trail running
- Sun 15 Mar
- £11-£17
Milton Keynes Festival of Running | 5K
- 5 km road running
- Sun 22 Mar
- £25-£30
Run Whitstable & Herne Bay Spring 5K, 10K and Half Marathon | 5K
- 5 km road running
- Sun 10 May
- £25-£30
Run Whitstable & Herne Bay May 5K, 10K and Half Marathon | 5K
- 5 km road running
- Sun 13 Sep
- £16-£38
The Garmin New Forest Marathon | 5K
- 5 km multi terrain running + 50 ft ascent