Ultramarathons in South East

2025 Race to the Stones

Newbury 10k

Running GP at Goodwood Motor Circuit - February

London Lea Valley Ultra and Gratitude 25

The Maverick X Series North Downs 2025

Endure24 Reading 2025

Beyond London 2025

The Maverick X-Series South Downs 2025

Bewl Water 10k, Half Marathon, Marathon & Ultra 50km Race Series - May

South Downs Way Ultra Run - March

Chiltern Ridge 50K

Testway Ultra 2025

Chiltern Hills 100K

London 100

Run to the Sea Brighton 2025

Greensand Way Ultra Run - May

PHOENIX - Minotaur 50 Mile Ultra, Hydra 75 Mile Ultra & Centaur 100 Mile Ultra

Faccombe Backyard Ultra

Pewsey Vale Ultra

The Oxford Ultra

North Downs Way Ultra Run - September

London Epping Forest Ultra and EcoTrail 25

Run to the Sea Bournemouth 2025

South Downs Way Ultra Run - October

Thames Trail Ultra

Running GP at Goodwood Motor Circuit – December

PHOENIX - Winter Runderland

PHOENIX Fridays - Chilly Willy Friday

PHOENIX - Ninja Run

The Winter Lucky Dip Run

PHOENIX - Are We There Yet Walton

PHOENIX - Runificent Pink Edition

PHOENIX Fridays - Mega Mix Friday

North Downs Way Ultra Run - February

Midweek Chasing Numbers Feb 25

I'm Too Sexy For My Running Shirt

PHOENIX Fridays - Valentines Friday

PHOENIX - All Stars Red 2025

PHOENIX - Feisty Phoenix 2025

Midweek Medal Madness Run Feb 2025

PHOENIX - We're All Mad Here

PHOENIX - Alice in Runderland

The Who Framed Roger Rabbit Love Run

PHOENIX - The Dragon Run

PHOENIX - Thou Shalt Run

PHOENIX Fridays - Blue Bridge Friday

Midweek Chasing Numbers Mar 25

Spice Up Your Run

Threshold Sports

100k Non-Stop - 100k Non-Stop Entry

100k Non-Stop - 100k Non-Stop Entry: Alzheimer's Research UK

100k Non-Stop - 100k Non-Stop Entry: Cancer Research UK

100k Non-Stop - 100k Non-Stop Entry: Macmillan

100k Non-Stop - 100k Non-Stop Entry: Parkinson's UK

100k Non-Stop - 100k Non-Stop Entry: Tommy's

100k Non-Stop - 100k Non-Stop Entry: SSAFA

100k Non-Stop - 100k Non-Stop Entry: SANE

100k Non-Stop - 100k Non-Stop Entry: Participating Charity

100k over 2 Days - 100k Over 2 Days Entry - Including camping

100k over 2 Days - 100k Over 2 Days Entry - Excluding camping

100k over 2 Days - 100k Over 2 Days Entry: Alzheimer's Research UK

100k over 2 Days - 100k Over 2 Days Entry: Cancer Research UK

100k over 2 Days - 100k Over 2 Days Entry: Macmillan

100k over 2 Days - 100k Over 2 Days Entry: Parkinson's UK

100k over 2 Days - 100k Over 2 Days Entry: Tommy's

100k over 2 Days - 100k Over 2 Days Entry: SSAFA

100k over 2 Days - 100k Over 2 Days Entry: SANE

100k over 2 Days - 100k Over 2 Days Entry: Participating Charity

Day One - Thames Valley 50k - Day One - Thames Valley 50k Entry

Day One - Thames Valley 50k - Day One - Thames Valley 50k Entry - Including Camping

Day One - Thames Valley 50k - Day One - Thames Valley 50k Entry: Alzheimer's Research UK

Day One - Thames Valley 50k - Day One - Thames Valley 50k Entry: Cancer Research UK

Day One - Thames Valley 50k - Day One - Thames Valley 50k Entry: Macmillan

Day One - Thames Valley 50k - Day One - Thames Valley 50k Entry: Parkinson's UK

Day One - Thames Valley 50k - Day One - Thames Valley 50k Entry: Tommy's

Day One - Thames Valley 50k - Day One - Thames Valley 50k Entry: SSAFA

Day One - Thames Valley 50k - Day One - Thames Valley 50k Entry: SANE

Day One - Thames Valley 50k - Day One - Thames Valley 50k Entry: Participating Charity

Day Two - Ridgeline 50k - Day Two - Ridgeline 50k Entry

Day Two - Ridgeline 50k - Day Two - Ridgeline 50k Entry - Including Camping

Day Two - Ridgeline 50k - Day Two - Ridgeline 50k Entry: Alzheimer's Research UK

Day Two - Ridgeline 50k - Day Two - Ridgeline 50k Entry: Cancer Research UK

Day Two - Ridgeline 50k - Day Two - Ridgeline 50k Entry: Macmillan

Day Two - Ridgeline 50k - Day Two - Ridgeline 50k Entry: Parkinson's UK

Day Two - Ridgeline 50k - Day Two - Ridgeline 50k Entry: Tommy's

Day Two - Ridgeline 50k - Day Two - Ridgeline 50k Entry: SSAFA

Day Two - Ridgeline 50k - Day Two - Ridgeline 50k Entry: SANE

Day Two - Ridgeline 50k - Day Two - Ridgeline 50k Entry: Participating Charity

Take on this popular 10k through the streets of Newbury and the surrounding countryside. Enjoy amazing scenery and a vibrant atmosphere as you run. This is the perfect event to bring the whole family to, with a choice of two kids' races!

Newbury Athletic Club

10k - Standard Entry

10k - UKA Affiliated Entry

Kid's Race - Standard Entry (Ages 5-10)

Under 15's Race - Standard Entry (Ages 11-14)

Kick it into gear with this unique Running Grand Prix event. Great for beginners and veterans alike, the course winds its way around the historic Goodwood Motor Circuit. Come for the finisher's medal or for that chequered flag finish.

RunThrough

5k - Standard Entry

Half Marathon - Standard Entry

20 Mile - Standard Entry

Marathon - Standard Entry

5k + T-shirt (+£12) - Standard Entry

10k + T-shirt (+£12) - Standard Entry

Half Marathon + T-shirt (+£12) - Standard Entry

20 Mile + T-shirt  (+£12) - Standard Entry

Marathon  + T-shirt (+£12) - Standard Entry

Group of 6 Booking - Standard Entry

50k - Standard Entry

50k + T-shirt (+£12) - Standard Entry

Returning by popular demand for 2025, this 50k ultra will take you all the way from rural Hertfordshire to Hackney Wick, London. This is a fully supported event, making for a great experience for those old and new to the world of Ultra running.

Camino Ultra

Camino Ultra Lea Valley 50km - Standard Entry

Camino Ultra Lea Valley 50km - Affiliated Entry

Camino Ultra Lea Valley Gratitude 25 - Standard Entry

Camino Ultra Lea Valley Gratitude 25 - Affiliated Entry

With just the right balance of challenge and stunning views, runners from all walks of life will love this race through the North Downs. Each of the 4 routes on offer boast stunning views, well-stocked aid stations, and punchy climbs. Enjoy the race day atmosphere afterwards with a non-alcoholic beer alongside friends and family

Maverick Race

Ultra - 52k - Standard Entry

Long - 43k - Standard Entry

Middle - 22k - Standard Entry

Short - 11k - Standard Entry

Short - 11k - Junior Entry

Experience this unique event based in Wasing Park, Reading, and see how far you can go in 24 hours! Enter individually for the ultimate challenge or in a team of up to 12 people to share the fun and complete 8k laps of the scenic course. Open to all abilities and with an incredible atmosphere and on-site Event Village, this is not one to miss.

Endure24 - Pair Entry

Endure24 - Team of 3 or more

Endure24 - Join an existing team

Endure24 - Solo Entry: Alzheimer's Research UK

Endure24 - Pair Entry: Alzheimer's Research UK

Endure24 - Team of 3 or more Entry: Alzheimer's Research UK

Endure24 - Join an existing team: Alzheimer's Research UK

Endure24 - Solo Entry: Macmillan

Endure24 - Pair Entry: Macmillan

Endure24 - Team of 3 or more Entry: Macmillan

Endure24 - Join an existing team: Macmillan

Endure24 - Solo Entry: Parkinson's UK

Endure24 - Pair Entry: Parkinson's UK

Endure24 - Team of 3 or more Entry: Parkinson's UK

Endure24 - Join an existing team: Parkinson's UK

Endure24 - Solo Entry: Sport in Mind

Endure24 - Pair Entry: Sport in Mind

Endure24 - Team of 3 or more Entry: Sport in Mind

Endure24 - Join an existing team: Sport in Mind

Endure24 - Solo Entry: Tommy's

Endure24 - Pair Entry: Tommy's

Endure24 - Team of 3 or more Entry: Tommy's

Endure24 - Join an existing team: Tommy's

Endure24 - Solo Entry: Young Lives Vs Cancer

Endure24 - Pair Entry: Young Lives Vs Cancer

Endure24 - Team of 3 or more Entry: Young Lives Vs Cancer

Endure24 - Join an existing team: Young Lives Vs Cancer

Endure24 - Pair Entry: Participating Charity

Endure24 - Team of 3 or more Entry: Participating Charity

Endure24 - Join an existing team: Participating Charity

All Beyond Trail events start and finish in city centres, in iconic locations accessible by public transport. Designed to be completed in one day the routes take you beyond the surface and celebrate the true identity of the city.With a mixture of urban trails there will be parks, pavements and paths to explore over a multitude of surfaces. With 25km and 55km distances there are routes for all, from challenge walkers, road runners and ultra athletes alike.The events have strict entry capacities so you can feel part of a community, but also the environment you are running through.

Great Run

Beyond London 55 - Early Bird Offer

Beyond London 25 - Early Bird Offer

Here's a trail event that promises to get the legs and lungs burning. Choose from 4 beautiful routes that crisscross the East and West Sussex border with woodlands, farm trails and ridgeways to run along. You won't regret joining Maverick Race for this one.

Ultra - 51k - Standard Entry

Long - 42 k - Standard Entry

Middle - 21 k - Standard Entry

Middle - 21 k - Junior Entry (12 and under)

Short - 9k - Standard Entry

Short - 9k - Junior Entry (12 and under)

Experience the stunning scenery of Bewl Water reservoir at this fantastic late spring event. With a variety of distances, from a 10k to an ultra marathon, this event offers something for experienced and novice runners alike. Come to claim your bespoke finisher's medal and top finisher's prize.

Hermes Running

Ultra - Standard Entry

Explore ancient woodlands and small villages on this guided 30 mile Ultra run. You will visit some of the oldest trees in Britain and embrace picturesque scenery. Come to join a team of adventurers and to experience ultrarunning at its finest.

Running Adventures

Explore the iconic landscape of the Chiltern Hills with this 50k ultramarathon. Beginning in Berkhamstead and finishing in Wendover, expect stunning scenery and plenty of hills to contend with. Come for the amazing views and finisher's medal.

Runaway Racing

50K Ultra Trail - Standard Entry

50K Ultra Trail - UKA Affiliated Entry

S﻿howing off the best views Hampshire has to offer, from the chalky downs of the North to the picturesque villages of the South, this trail ultra has it all. The well-stocked aid stations will keep you going throughout, with a fantastic medal waiting for you at the finish line.

And-over Trail Events

40 Mile - Standard Entry

50 Mile - Standard Entry

Enjoy fantastic scenery as you take on this incredible 100k challenge through the Chiltern Hills, an Area of Outstanding Natural Beauty. Winding your way through Ashridge Esate, Ivinghoe Beacon, Coombe Hill & Bledlow Ridge, you'll be able to take advantage of six fully-stocked aid stations. Come along for your finisher's medal and T-shirt!

100K Ultra Trail - UKA Affiliated Entry

100K Ultra Trail - Unaffiliated Entry

Whether this is your first ultra or one hundredth, this event promises a route you'll never forget. Covering some of London most iconic landmarks and areas, participants will be treated to a great community spirit with a course which is great for spectators.

100 KM - Standard Entry

50 KM - Standard Entry

50 KM - Volunteer & Run Entry

25 KM - Standard Entry

25 KM - Volunteer & Run Entry

Race from Horsham to Brighton over a 50k, multi-terrain route promising amazing scenery. Open to all, this ultra has a friendly atmosphere making it ideal for those just starting their endurance running journey. Come for the incredible views and bespoke medal.

Ultra Violet

50k - Affiliated Entry

Tackle an Ultra this spring with Matt Buck, a professional trail running athlete. Offering plenty of pearls of wisdom and top tips this is perfect for all looking to push their distance or complete their first Ultra. Come to earn that free post-run beer.

30 miles  - Standard Entry

Take on the ultimate challenge, with this 50, 75 or 100 mile ultra taking place at Denbies Estate in Surrey. This is the ideal way to tackle your first ultra, with a generous time of 30 hours to complete your chosen distance. Expect stocked aid stations, a supportive atmosphere and a bespoke medal.

Phoenix Running

Minotaur 50 Mile Ultra Marathon - Standard Entry

Minotaur 50 Mile Ultra Marathon - UKA Affiliated Entry

Hydra 75 Mile Ultra Marathon - Standard Entry

Hydra 75 Mile Ultra Marathon - UKA Affiliated Entry

Centaur 100 Mile Ultra Marathon - Standard Entry

Centaur 100 Mile Ultra Marathon - UKA Affiliated Entry

This exhilarating event set on the Faccombe Estate in Hampshire takes endurance running to the next level. Complete as many loops of the 4.12 mile course as you can, and find out if you can be the last person standing in this tough backyard ultra.

Come to follow one of the newest National Trails, the Pewsey Vale Circular in the heart of the North Wessex Downs AONB as you complete this challenging ultramarathon. Expect fully-loaded aid stations and some fantastic scenery as you run towards the finish line to claim your medal after 124k.

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Ultramarathon Events in South East 2025-2026

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