50K ultra runs in South East
Find 50k ultra runs in South East in 2025/2026 - filter by date, location or category, display on a map or use the advanced search to find your perfect race.
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Select an event for photos, video, route, location, reviews, entry fees and how to enter.
- Sat 28 Mar 2026
- £23-£35
Milkshake Meander | 50K
"My milkshake brings all the boys to the yard"...not quite sure where we're going with this but come and join Saturn Running for our Milkshake Meander event!
- Enter online
- Age 20 & over
- 50 km trail running + 0 ft ascent
- Thu 2 Apr 2026
- £23-£35
Eggcellent Easter Orange Run | 50K
The Eggcellent Easter Orange Run is the first event in the five day series where you can earn the fantastic easter egg medal in orange!
- Enter online
- Age 20 & over
- 50 km trail running + 0 ft ascent
- Fri 3 Apr 2026
- £23-£35
Eggcellent Easter Pink Run | 50K
The Eggcellent Easter Pink Run is the second event in the five day series where you can earn the fantastic easter egg medal, this time in pink!
- Enter online
- Age 20 & over
- 50 km trail running + 0 ft ascent
- Sat 4 Apr 2026
- £23-£35
Eggcellent Easter Green Run | 50K
The Eggcellent Easter Green Run is the third event in the five day series where you can earn the fantastic easter egg medal, this time in green!
- Enter online
- Age 20 & over
- 50 km trail running + 0 ft ascent
- Sun 5 Apr 2026
- £23-£35
Eggcellent Easter Purple Run | 50K
The Eggcellent Easter Purple Run is the fourth event in the five day series where you can earn the fantastic easter egg medal, this time in purple!
- Enter online
- Age 20 & over
- 50 km trail running + 0 ft ascent
- Mon 6 Apr 2026
- £23-£35
Eggcellent Easter Blue Run | 50K
The Eggcellent Easter Blue Run is the fifth and final event in the five day series where you can earn the fantastic easter egg medal, this time in blue!
- Enter online
- Age 20 & over
- 50 km trail running + 0 ft ascent
- Sat 11 Apr 2026
- £23-£35
Love it or Hate it Run | 50K
Come and get involved in this Love it or Hate it Run!
- Enter online
- Age 20 & over
- 50 km trail running + 0 ft ascent
- Fri 17 Apr 2026
- £20-£27
Midweek Medal Madness Run | 50K
The aim of the midweek runs is to hold events as cheaply as possible in order for people to be able to build their numbers or simply to help people achieve their own goals at an affordable price.
- Enter online
- Age 20 & over
- 50 km trail running + 0 ft ascent
- Sat 18 Apr 2026
- £23-£35
The London Run | 50K
Not make it into The London Marathon but still fancy getting a super awesome medal based on the iconic race set in the capital city?
- Enter online
- Age 20 & over
- 50 km trail running + 0 ft ascent
- Fri 1 May 2026
- £20-£27
Midweek Chasing Numbers May | 50K
The aim of the midweek runs is to hold events as cheaply as possible in order for people to be able to build their numbers or simply to help people achieve their own goals at an affordable price.
- Enter online
- Age 20 & over
- 50 km trail running + 0 ft ascent
- Mon 4 May 2026
- £16-£27
Bank Holiday Madness May
This Bank Holiday event is run as cheaply as possible in order for people to be able to build their numbers or simply to help people achieve their own goals at an affordable price.
- Families
- Newcomers
- Event village
- All ages
- Trail run
- 5K run
- 10K run
- Half marathon
- Marathon
- + 3 more races
- Sat 13 Jun 2026
- £60-£62
Bewl Water Summer | Ultra
Scenic mixed-terrain route around Bewl Water on undulating rural wooded trails and quiet country lanes. The marathon on the same day was previously rated one of the top UK marathons.
- Chip timing
- Enter online
- Hilly
- Age 20-80
- 50 km trail running + 1500 ft ascent
- Sat 20 Jun 2026
- £60-£175
Race to the King
Take on a challenge fit for royalty in this epic ultramarathon along the South Downs Way and Monarch’s Way. Choose from two unique 50km loops – or tackle both in a non-stop 100km challenge!
- Recycling
- Newcomers
- Entertainment
- Music
- Event village
- Park
- Rural
- Free venue entry
- Sustainability policy
- Public transport links
- Age 18 & over
- 100K ultra run
- 50K ultra run 2
- Trail run
- Ultra run
- Sat 11 - Sun 12 Jul 2026
- £90-£275
Race to the Stones
Conquer Britain's oldest trail, the ancient Ridgeway, as you race towards the 5000-year-old Avebury Standing Stones.
- Families
- Recycling
- Newcomers
- Event village
- Rural
- Sustainability policy
- Public transport links
- Age 18 & over
- 50K ultra run 2
- 100K ultra run 3
- Sat 12 Sep 2026
- £60-£62
Bewl Water Autumn | Ultra
Scenic mixed-terrain route around Bewl Water on undulating rural wooded trails and quiet country lanes. The marathon course was previously rated one of the top UK marathons.
- Chip timing
- Enter online
- Hilly
- Age 20-80
- 50 km trail running + 1500 ft ascent
- Sat 8 Nov
Five Trails Ultra & Three Trails Half | 5 Trails Ultra
- 50 km trail running + 1169 m ascent
- Sun 21 Dec
Portsmouth Coastal Waterside Marathon Events | 50K Ultra
- 50 km multi terrain running