Multi-terrain runs in South East
Find multi-terrain runs near me in South East for 2025/2026 - search by date or place, display on a map or use the advanced search to find your perfect race.
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Click an event for full event details, location, route, sustainability, what's included and how to enter.

- Sat 21 Jun
- £80-£85
- 3 charities
- Sat 21 Jun
- £80-£85
- 3 charities
Race to the King | Castle 50K
Head through the historic town of Arundel and witness the impressive Arundel Castle as you meander along the River Arun, across the South Downs in breathtaking surroundings.
- Chip timing
- Enter online
- GPS tracking
- Hilly
- Age 18 & over
- 50 km trail running + 2663 ft ascent

- Sat 12 Jul
- £85-£180
- 6 charities
- Sat 12 Jul
- £85-£180
- 6 charities
Race to the Stones | Day One | Thames Valley 50K
Starting in Lewknor, this event presents a varied and scenic route steeped in history. Crossing England’s longest river at the halfway mark, the course finishes at the iconic Lattin Down basecamp.
- Chip timing
- Enter online
- GPS tracking
- Undulating
- Age 18 & over
- 50 km trail running + 710 m ascent

- Sat 12 Jul
- £180-£190
- 8 charities
- Sat 12 Jul
- £180-£190
- 8 charities
Race to the Stones | 100K Non-stop
Take on the full 100K ultramarathon in one go. Fully supported through day and night on an incredibly scenic and historic route to finish at the 5000-year-old Avebury standing stones.
- Chip timing
- Enter online
- GPS tracking
- Undulating
- Age 18 & over
- 100 km trail running + 3704 ft ascent

- Sat 12 Jul
- £260-£270
- 6 charities
- Sat 12 Jul
- £260-£270
- 6 charities
Race to the Stones | 100K Two Days with camping
Take on the full 100K Race to the Stones ultramarathon with an overnight stop at the all-inclusive Basecamp, meaning a good nights' sleep in between the 50K stints.
- Chip timing
- Enter online
- GPS tracking
- Undulating
- Age 18 & over
- 100 km trail running + 3704 ft ascent

- Sat 12 Jul
- £170-£180
- Sat 12 Jul
- £170-£180
Race to the Stones | 100K Two Days no camping
Take on the full Race to the Stones 100K ultramarathon over two days, making your own arrangements for overnight accommodation at the halfway point (ideal if you'd prefer not to camp).
- Chip timing
- Enter online
- GPS tracking
- Undulating
- Age 18 & over
- 100 km trail running + 3704 ft ascent

- Sun 13 Jul
- £85-£180
- 6 charities
- Sun 13 Jul
- £85-£180
- 6 charities
Race to the Stones | Day Two | Ridgeline 50K
Sticking to higher ground, you'll pass through a surprisingly isolated stretch of southern England and enjoy dramatic views before finishing with the full 100K at the awesome Avebury Standing Stones.
- Chip timing
- Enter online
- GPS tracking
- Undulating
- Age 18 & over
- 50 km trail running + 630 m ascent

- Sat 6 - Sun 7 Sep
- £199
- 15 charities
- Sat 6 - Sun 7 Sep
- £199
- 15 charities
South Coast Ultra Challenge | Full 100km continuous
The full distance option of the South Coast Challenge from sunny Eastbourne, over the magnificent Seven Sisters, onto Cuckmere Haven and over the South Downs all the way to historic Arundel.
- Chip timing
- Enter online
- GPS tracking
- Hilly
- Age 18 & over
- 100 km trail running + 2100 m ascent

- Sun 14 Sep
- £28-£35
- Sun 14 Sep
- £28-£35
Rye Ancient Trails 15K
A truly breathtaking multi-terrain race through the High Weald Area of Outstanding Natural Beauty in East Sussex. A race that enchants and delights at every twist and turn.
- Chip timing
- Enter online
- Undulating
- Age 16 & over
- 15 km multi terrain running

- Sun 14 Sep
- £32-£35
- Sun 14 Sep
- £32-£35
Rye Ancient Trails 30K
A truly breathtaking multi-terrain race through the High Weald Area of Outstanding Natural Beauty in East Sussex. A race that enchants and delights at every twist and turn.
- Chip timing
- Enter online
- Undulating
- Age 18 & over
- 30 km multi terrain running

- Sat 20 Sep
- 3 charities
- Sat 20 Sep
- 3 charities
Tough Mudder London South | 15K - Saturday
London South is the standout event of the series for good reason. 'Showstopper' obstacles, a diverse course, seriously muddy obstacles and a party atmosphere make it the ultimate mud party!
- Enter online
- Hilly
- Traffic free
- Fundraising optional
- Age 14 & over
- 15 km multi terrain running

- Sat 20 Sep
- 3 charities
- Sat 20 Sep
- 3 charities
Tough Mudder London South | 5K - Saturday
London South is the standout event of the series for good reason. 'Showstopper' obstacles, a diverse course, seriously muddy obstacles and a party atmosphere make it the ultimate mud party!
- Enter online
- Hilly
- Traffic free
- Fundraising optional
- Age 14 & over
- 5 km multi terrain running

- Sun 21 Sep
- 4 charities
- Sun 21 Sep
- 4 charities
Tough Mudder London South | 15K - Sunday
London South is the standout event of the series for good reason. 'Showstopper' obstacles, a diverse course, seriously muddy obstacles and a party atmosphere make it the ultimate mud party!
- Enter online
- Hilly
- Traffic free
- Fundraising optional
- Age 14 & over
- 15 km multi terrain running

- Sun 21 Sep
- 3 charities
- Sun 21 Sep
- 3 charities
Tough Mudder London South | 5K - Sunday
London South is the standout event of the series for good reason. 'Showstopper' obstacles, a diverse course, seriously muddy obstacles and a party atmosphere make it the ultimate mud party!
- Enter online
- Hilly
- Traffic free
- Fundraising optional
- Age 14 & over
- 5 km multi terrain running

- Sat 25 Oct
- £26-£37.50
- Sat 25 Oct
- £26-£37.50
Running Tribe Races | Oct | 10K
A new and unique concept where you turn up ready to conquer 10km but if you're feeling great, tackle a Half Marathon or even further depending on how you feel on the day!
- Enter online
- Age 15 & over
- 10 km multi terrain running

- Sat 25 Oct
- £26-£37.50
- Sat 25 Oct
- £26-£37.50
Running Tribe Races | Oct | Half Marathon
A new and unique concept where you turn up ready to conquer a Half Marathon but if you're feeling great tackle a Marathon, or go easy and run a cool 10km depending on how you feel on the day!
- Enter online
- Undulating
- Age 17 & over
- 13.1 miles multi terrain running

- Sat 25 Oct
- £26-£37.50
- Sat 25 Oct
- £26-£37.50
Running Tribe Races | Oct | Full Marathon
A new and unique concept where you turn up ready to conquer a Marathon but if you're feeling great tackle an Ultra, or go easy and run a cool 1-2 loops instead, depending on how you feel on the day!
- Enter online
- Undulating
- Age 18 & over
- 26.2 miles multi terrain running

- Sat 25 Oct
- £26-£37.50
- Sat 25 Oct
- £26-£37.50
Running Tribe Races | Oct | 40 Mile Ultramarathon
A new and unique concept where you turn up ready to conquer an Ultra but if you feel like going easy, run a cool 1-3 loops instead! Ideal for testing out fuelling techniques & kit.
- Enter online
- Undulating
- Age 18 & over
- 40 miles multi terrain running

- Sun 26 Oct
- £31.50
- Sun 26 Oct
- £31.50
River Thames Half Marathon
The beautiful Surrey town of Walton-on-Thames beckons runners to a flat, fast, scenic and largely traffic-free race along the River Thames towpath with roads to Hampton Court Bridge.
- Newcomers
- Entertainment
- Music
- Enter online
- Flat
- PB
- Event village
- Rural
- Age 17 & over
- 13.1 miles road running

- Sat 8 Nov
- £70-£175
- Sat 8 Nov
- £70-£175
Race to Remember | 76km
Test yourself on an ultramarathon - one of the most poignant challenges of the year - to honour the servicemen and women who have sacrificed so much for our nation.
- Enter online
- Undulating
- Age 16 & over
- 76 km multi terrain running + 2100 ft ascent

- Sat 8 Nov
- £45-£145
- Sat 8 Nov
- £45-£145
Race to Remember | 36km
Run, walk or jog Race to Remember - one of the most poignant challenges of the year - and honour the servicemen and women who have sacrificed so much for our nation.
- Enter online
- Undulating
- Age 16 & over
- 36 km multi terrain running + 857 ft ascent

- Sun 30 Nov
- £26-£37.50
- Sun 30 Nov
- £26-£37.50
Running Tribe Races | Nov | 10K
A new and unique concept where you turn up ready to conquer 10km but if you're feeling great, tackle a Half Marathon or even further depending on how you feel on the day!
- Enter online
- Age 15 & over
- 10 km multi terrain running

- Sun 30 Nov
- £26-£37.50
- Sun 30 Nov
- £26-£37.50
Running Tribe Races | Nov | 40 Mile Ultramarathon
A new and unique concept where you turn up ready to conquer an Ultra but if you feel like going easy, run a cool 1-3 loops instead! Ideal for testing out fuelling techniques & kit.
- Enter online
- Undulating
- Age 18 & over
- 40 miles multi terrain running

- Sun 30 Nov
- £26-£37.50
- Sun 30 Nov
- £26-£37.50
Running Tribe Races | Nov | Full Marathon
A new and unique concept where you turn up ready to conquer a Marathon but if you're feeling great tackle an Ultra, or go easy and run a cool 1-2 loops instead, depending on how you feel on the day!
- Enter online
- Undulating
- Age 18 & over
- 26.2 miles multi terrain running

- Sun 30 Nov
- £26-£37.50
- Sun 30 Nov
- £26-£37.50
Running Tribe Races | Nov | Half Marathon
A new and unique concept where you turn up ready to conquer a Half Marathon but if you're feeling great tackle a Marathon, or go easy and run a cool 10km depending on how you feel on the day!
- Enter online
- Undulating
- Age 17 & over
- 13.1 miles multi terrain running

- Sun 30 Nov
- £26-£37.50
- Sun 30 Nov
- £26-£37.50
Running Tribe Races | Nov | 32K
A new and unique concept where you turn up ready to conquer a Half Marathon but if you're feeling great tackle a Marathon, or go easy and run a cool 10km depending on how you feel on the day!
- Enter online
- Undulating
- Age 17 & over
- 32 km multi terrain running