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.
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- Sun 30 Aug
- £28
Run Dorney Lake | August | 5K
Choose your distance and chase your personal best on the flat, chip-timed 5K course at London 2012's iconic Olympic venue; all abilities welcome.
- 5 km road running
- 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 26 Sep
- £28
Run Dorney Lake | September | 5K
Choose your distance and chase your personal best on the flat, chip-timed 5K course at London 2012's iconic Olympic venue; all abilities welcome.
- 5 km road running
- Sat 3 Oct
- £28
Run Dorney Lake | October | 5K
Choose your distance and chase your personal best on the flat, chip-timed 5K course at London 2012's iconic Olympic venue; all abilities welcome.
- 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 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
- Sun 8 Nov
- £28
Run Dorney Lake | November | 5K
Choose your distance and chase your personal best on the flat, chip-timed 5K course at London 2012's iconic Olympic venue; all abilities welcome.
- 5 km road running
- Sat 12 Dec
- £28
Run Dorney Lake | December | 5K
Choose your distance and chase your personal best on the flat, chip-timed 5K
- 5 km road 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
- Wed 27 May
- £15-£17
GBR Run Bexhill 5K Series - Race One | 5K
- 5 km road running
- Wed 24 Jun
- £15-£17
GBR Run Bexhill 5K Series - Race Two | 5K
- 5 km road running
- Wed 22 Jul
- £15-£17
GBR Run Bexhill 5K Series - Race Three | 5K
- 5 km road running
- Sun 13 Sep
- £16-£38
New Forest Marathon | 5K
- 5 km multi terrain running + 50 ft ascent