The South East

• Sun 28 Sep
• £42-£44

Windsor Half Marathon

An inspiring half marathon in Windsor Great Park, starting and finishing on the Long Walk with Windsor Castle as the backdrop - probably the most iconic of all road race finishes in the UK!

• 13.1 miles road running

• Wed 27 Aug
• £58-£78

Midweek Dorney Triathlon | August

Take on a multi-activity or distance event and take the opportunity to race around this unique and inspiring Olympic venue! Great water quality and flat, scenic grounds.

• Super sprint triathlon
• Sprint triathlon
• Sprint aquabike

• Sun 31 Aug
• £75

Brighton and Hove Triathlon | Super Sprint Triathlon

Take on the fast and flat traffic-free route from Hove Lawns along the famous seafront promenade! Well established as one of the biggest events in the triathlon calendar.

• 300 m sea swimming
• 10 km road cycling
• 2.5 km road running

• Sun 31 Aug
• £75

Brighton and Hove Triathlon | Sprint Aquathlon

Cycling not your thing? Experience a big day of swim-run multi sport from the famous seafront promenade and along the fast and flat traffic-free route from Hove Lawns!

• 750 m sea swimming
• 5 km road running

• Sun 31 Aug
• £95-£135

Brighton and Hove Triathlon | Sprint Triathlon

Take on the fast and flat traffic-free route from Hove Lawns along the famous seafront promenade! Well established as one of the biggest events in the triathlon calendar.

• 750 m sea swimming
• 20 km road cycling
• 5 km road running

• Sun 31 Aug
• £95

Brighton and Hove Triathlon | Standard Aquathlon

Cycling not your thing? Experience a big day of swim-run multi sport from the famous seafront promenade and along the fast and flat traffic-free route from Hove Lawns!

• 1500 m sea swimming
• 10 km road running

• Sun 31 Aug
• £120-£160

Brighton and Hove Triathlon | Standard Triathlon

Take on the fast and flat traffic-free route from Hove Lawns along the famous seafront promenade! Well established as one of the biggest events in the triathlon calendar.

• 1500 m sea swimming
• 40 km road cycling
• 10 km road running

• Sun 31 Aug
• £45

Brighton and Hove Triathlon | 1500M Swim

The swim-only event of the renowned Brighton and Hove Triathlon from the famous seafront promenade! Open water swimmers can soak up one of the biggest events in the triathlon calendar.

• 1500 m sea swimming

• Fri 5 Sep
• £7-£15

Rye Summer 5K Series | Race Four

Enjoy every spellbinding step through the stunning landscape of Rye Harbour Nature Reserve in this exceptional summer series. Enter one or enter more and watch your times improve.

• Fun run
• 5K run

• Sat 6 - Sun 7 Sep
• £89-£199

South Coast Ultra Challenge

The South Downs National Park is a superb backdrop for a real challenge featuring Beachy Head, the Seven Sisters and the South Downs Way with a choice of distances from 25km right up to 100km!

• 100K ultra run 2
• Ultra run 2
• Trail run

• Sun 7 Sep
• £40
• Entries close soon

Run Thorpe Park 5K & 10K | 5K

Join the return of the Run Thorpe Park and fundraise for one of these great causes!

• 5 km road running + 4 m ascent

• Sun 7 Sep
• £40
• Entries close soon

Run Thorpe Park 5K & 10K | 10K

Join the return of the Run Thorpe Park and fundraise for one of these great causes!

• 10 km road running

• Fri 12 - Sun 14 Sep
• £39-£199

Thames Path Ultra Challenge

England’s greatest river provides a fantastic backdrop for an unforgettable 'festival' challenge weekend, with distances from 10km right up to 100km there’s a Thames Challenge for everyone!

• 100K ultra run 2
• 50K ultra run 2
• Trail run 4
• Ultra run
• 10K run
• + 4 more races

• Sat 13 Sep
• £33-£62

Bewl Water Autumn

Previously rated one of the top 10 UK marathons! Scenic mixed-terrain routes following Bewl Water around the reservoir route on undulating rural wooded trails and quiet country lanes.

• 10K run
• Half marathon
• Marathon
• 50K ultra run

• Sun 14 Sep
• £28-£32

Rye Ancient Trails 30K & 15K

A true steeplechase race across the breathtaking scenery of the ancient trails surrounding the medieval town of Rye in East Sussex, linking Norman churches as you go.

• Multi-terrain run 2

• Sun 14 Sep
• £20-£74.50

Woking Autumn Triathlon & Junior Aquathlon

Book Your Spot for the Woking Triathlon! Join one of the most popular triathlons, where athletes return year after year!

• Super sprint triathlon
• Sprint triathlon
• Kids aquathlon 5
• Sprint aquathlon

• Fri 19 - Sun 21 Sep
• £75-£300

Trailwalker

Are you Trailwalker strong? As a team of four, trek 100km non-stop across the South Downs in under 30 hours.

• 100 km trekking

• Sat 20 Sep
• £45-£60
• Pay in instalments

London to Brighton Off-Road Bike Ride

Come and tackle miles of technical terrain with superb views on a dirt adventure you'll never forget! It's Europe's largest charity mountain bike ride, and you're invited to join in.

Email heretohelp@bhf.org.uk for instalments code

• Charity bike ride 2

• Sat 20 Sep
• £110-£115
• Entries close soon

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!

• 15 km multi terrain running

• Sat 20 Sep
• £100
• Entries close soon

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!

• 5 km multi terrain running

• Sun 21 Sep
• £30-£97

Eton Dorney Triathlon & Swims

The Olympic venue, Eton Dorney, offers pan-flat, traffic-free roads and a beautiful clear lake for all levels of triathletes and swimmers to enjoy in an exclusive setting.

• Super sprint triathlon
• Sprint triathlon
• Olympic triathlon
• Lake swim 4

• Sun 21 Sep
• £105-£110
• Entries close soon

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!

• 15 km multi terrain running

• Sun 21 Sep
• £100
• Entries close soon

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!

• 5 km multi terrain running

• Sat 27 - Sun 28 Sep
• £35-£295

Hever Castle Triathlon and Multisport Festival

Get active in the award-winning grounds and surrounding Kent countryside in the discipline of your choice! Recruit your friends and celebrate completing your challenge in the festival village.

• Half Ironman
• Olympic triathlon
• Sprint triathlon 2
• Super sprint triathlon
• Novice triathlon
• + 17 more races

• Sat 27 Sep
• £20-£25
• 30% off

Mighty Hikes | South Coast

Take on a challenge and join Macmillan at the South Coast Mighty Hike - where you’ll explore the stunning South Downs Way and take in spectacular coastal views to support people living with cancer.

30% off with discount code

• Hike 2

• Sat 27 Sep
• £39-£139

Chiltern 50 Ultra Challenge

A beautiful, end-of-season, looped challenge in some of the Chilterns' finest countryside, with historic trails, rolling hills, nature reserves and fantastic views with routes from 10km up to 50km.

• 50K ultra run
• Trail run
• 10K run

• Sat 27 Sep
• £58-£120

Dorney Triathlon | September

Take on a multi-activity or distance event and take the opportunity to race around this unique and inspiring Olympic venue! Great water quality and flat, scenic grounds.

• Super sprint triathlon
• Sprint triathlon
• Olympic triathlon
• Sprint aquabike
• Standard aquabike

• Sat 27 Sep
• £40

Wolfe Gravel & Grit

Forget the roads, this gravel ride throws you deep into the heart of Kent on a wild ride atop the Greensand Ridge, where the singletrack flows and the adrenaline pumps.

• Gravel events 2

• Sat 27 Sep
• £75

Fortitude Ultra | Denbies

10Hrs: 10 Laps: You-vs-You. Complete 10 laps of the ~3-mile, 4-mile or 5-mile loops in the given time through the scenic Denbies Wine Estate.

• 10 hrs trail running

• Sun 28 Sep
• £0.50-£44

Windsor Half Marathon & Sprite Sprint

An inspiring half marathon in Windsor Great Park, starting and finishing on the Long Walk with Windsor Castle as the backdrop - probably the most iconic of all road race finishes in the UK!

• Half marathon
• Fun run

• Sun 28 Sep
• £4-£26

Folkestone Rotary Half Marathon

This ever popular race promises amazing coastal views and a relatively flat coastal promenade run with real PB potential.

• Fun run
• Half marathon

• Sat 4 Oct
• £47-£88

Dorney Duathlon | October

Take on a Super Sprint, Sprint or Standard distance and take the opportunity to race around this unique and inspiring Olympic venue!! This event is draft-illegal.

• Super sprint duathlon
• Sprint duathlon
• Standard duathlon

• Sun 5 Oct
• £30-£68

The Palace Walk & Palace to Palace Bike Ride

Walk or cycle with The King's Trust and make your miles matter to support young people. Choose to walk 13-miles around iconic Windsor landmarks or cycle from Buckingham Palace to Windsor Castle!

• Charity walk
• Medium sportive
• Long sportive

• Sun 5 Oct
• £7-£39

Hastings Half Marathon

This is the race you'll want to keep racing, year after year. Explore the delights of the Hastings Half Marathon as it twists and turns through the historic town of Hastings and beyond.

• Fun run
• Half marathon

• Sat 11 - Sun 12 Oct
• £40-£210

Hever Castle Commando Obstacle Festival

The Hever Castle Commando obstacle race is the only event that can recreate the mud, sweat and pain of modern day Royal Marines Commando training. Have you got what it takes?

• Obstacle race 6

• Sat 11 Oct
• £39-£139

Kent Downs 50 Ultra Challenge

An end-of-season ultra challenge in the Garden of England with a looped route around the Kent Downs starting on the North Downs Way with picturesque scenery and full support all the way.

• 50K ultra run
• Trail run
• 10K run

• Sat 11 Oct
• £31-£35

The Hurt

The toughest trail run in the South East is back by popular demand. Likened to fell running, the route includes steep, rocky ascent on lesser-known trails through the luscious Hurtwood Forest.

• Trail run
• Half marathon

• Sun 19 Oct
• £7-£31

Bedgebury Forest Half Marathon & 10K

An unforgettable race between the pines and beneath the majestic canopy of Bedgebury Forest - a trail race that will ignite your racer's heart.

• Fun run
• 10K run
• Half marathon

• Sun 19 Oct
• £17-£19

Hove Prom 10K

Join Arena 80 for this fast and flat 10K along the scenic promenade and with the right conditions, PBs are very likely.

• 10 km road running + 82 ft ascent

• Sun 19 Oct
• £15-£35

Great South Run

Probably the world’s favourite 10 mile running event with inspiring history, salty air and glorious sea views guaranteed! Local supporters will keep your spirits and motivation up the whole way.

• 10 miles road running

• Sat 25 Oct
• £26-£37.50

Running Tribe Races | Oct

A new and unique concept where you decide how many loops you feel capable of on the day - whether it's 7km, 14km, Half Marathon, Full Marathon or an Ultra Marathon! Push yourself further or go easy.

• Multi-terrain run 2
• Half marathon
• Marathon
• Ultra run

• Sat 25 Oct
• £70

Thames Trail Ultra

This 47-mile point-to-point along England’s longest river is one of the most popular events in the British ultra running calendar, boasting an interesting route and top runner reviews.

• 47 miles trail running + 913 ft ascent

• Sun 26 Oct
• £26-£37.50

Running Tribe Races | Oct

A new and unique concept where you decide how many 10km loops you feel capable of on the day - whether it's 10km, Half Marathon, Full Marathon or an Ultra Marathon! Push yourself further or go easy.

• 10K run
• Half marathon
• Marathon
• Ultra run

• Sat 1 Nov
• £12-£35

Whitstable & Herne Bay MoRun

MoRunning brings everyday people together with the focus being to inspire you, your family, your kids and your friends to have the best time running! Get ready, Whitstable and Herne Bay!

• Fun run
• 5K run
• 10K run
• Half marathon

• Sun 2 Nov
• £6-£46

Wendover Woods Marathon, Half Marathon & 10K

Come and conquer the Wendover Woods hills in this scenic Autumnal challenge and discover the joy of trail running with this majestic race with the forest is shrouded in colours.

• Fun run
• 10K run
• Half marathon
• Marathon

• Sun 9 Nov
• £12-£35

Southampton MoRun

MoRunning brings everyday people together with the focus being to inspire you, your family, your kids and your friends to have the best time running! Get ready, Southampton!

• Fun run
• 5K run
• 10K run
• Half marathon

• Sun 9 Nov
• £47-£88

Dorney Duathlon | November

Take on a Super Sprint, Sprint or Standard distance and take the opportunity to race around this unique and inspiring Olympic venue!!

• Super sprint duathlon
• Sprint duathlon
• Standard duathlon

• Sun 23 Nov
• £12-£30

Milton Keynes MoRun

MoRunning brings everyday people together with the focus being to inspire you, your family, your kids and your friends to have the best time running! Get ready, Milton Keynes!

• Fun run
• 5K run
• 10K run

• Sun 23 Nov
• £19-£35

ATW Wendover Woods Trail Run & Canicross

Set in the stunning Wendover Woods, this is the perfect opportunity to challenge yourself on scenic trails surrounded by beautiful woodland. Enjoy the fresh air, stunning views, and rewarding trails.

• 5K run
• CaniCross
• 10K run
• Half marathon

• Sun 30 Nov
• £26-£37.50

Running Tribe Races | Nov

A new and unique concept where you decide how many 10km loops you feel capable of on the day - whether it's 10km, Half Marathon, Full Marathon or an Ultra Marathon! Push yourself further or go easy.

• 10K run
• Half marathon
• Marathon
• Ultra run

• Sun 14 Dec
• £26-£37.50

Running Tribe Races | Dec

A new and unique concept where you decide how many 10km loops you feel capable of on the day - whether it's 10km, Half Marathon, Full Marathon or an Ultra Marathon! Push yourself further or go easy.

• 10K run
• Half marathon
• Marathon
• Ultra run

• Sat 20 Dec
• £6-£22

Christmas Pudding Dash

Back for its 20th year, this cracking, undulating, muddy cross-country trail racing extravaganza would have Santa ditching his sleigh for running shoes!

• Fun run 2
• XC run

• Sun 21 Dec
• £7-£22

Kent Christmas Cracker

Grab your running shoes and put on your Santa hat - it's time for this cracking Christmas race! Come and enjoy the spirit of Christmas and superb racing on this flat and fast course.

• Fun run 3

• Sat 10 Jan 2026
• £8-£28

Dark Skies Surrey Hills

The Dark Skies returns for an undulating yomp through Surrey’s muddy, rolling hills and feature a thrilling 5K, 10K, 10 Mile, kids races and canicross with hot food and drinks, medals, kit and prizes.

• Fun run 2
• 5K run
• 10K run
• 10 miler
• CaniCross 2

• Sat 10 Jan 2026
• £27-£31

Fitstuff G3 Run Series | Race 1

Take on a tough, award-winning trail run in the Surrey Hills and North Downs with a cracking sunrise, stop-in-your-tracks views and five-star reviews! No nonsense trail running.

• 10K run
• Trail run

• Sat 10 Jan 2026
• £80

Country to Capital Ultra

A fabulous 43-mile point-to-point race, well established as the season opener to the Ultra race calendar and always sells out. From the countryside along the Grand Union Canal into London.

• 43 miles trail running + 1404 ft ascent

• Sat 24 Jan 2026
• £26-£37.50

Running Tribe Races | Jan

A new and unique concept where you decide how many 10km loops you feel capable of on the day - whether it's 10km, Half Marathon, Full Marathon or an Ultra Marathon! Push yourself further or go easy.

• Multi-terrain run 2
• Half marathon
• Marathon
• Ultra run

• Sun 25 Jan 2026
• £26-£37.50

Running Tribe Races | Jan

A new and unique concept where you decide how many 10km loops you feel capable of on the day - whether it's 10km, Half Marathon, Full Marathon or an Ultra Marathon! Push yourself further or go easy.

• 10K run
• Half marathon
• Marathon
• Ultra run

• Sat 31 Jan 2026
• £27-£31

Fitstuff G3 Run Series | Race 2

Take on a tough, award-winning trail run in the Surrey Hills and North Downs with a cracking sunrise, stop-in-your-tracks views and five-star reviews! No nonsense trail running.

• 10K run
• Trail run

• Sun 2 Nov
• FREE-£10

Poppy Walk | Southampton

Come together during the Poppy Appeal for a short, family-friendly walk to lay a poppy tribute and mark Remembrance.

• 3 km walking

• Sat 8 Nov
• £55-£175

Race to Remember

Take on a physical endurance race from the home of the British Army to the iconic finish line at HMS Warrior to honour the servicemen and women who have sacrificed so much for our nation.

• Ultra run
• Charity run