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All runs

View our full list of all UK charity runs around the South, South East and South West, organised by distance, below.

Jump straight to: Marathons | Half Marathons | 10ks | 5ks, trail runs and fun runs

With so many fantastic running events to choose from, its difficult to know where to start – which is why we’ve cherry picked some of the best ones that are right on your doorstep around the South Coast.

Marathons and more

06 Apr
Brighton Marathon 2025
Runs
Brighton
Running makes you feel good. Crossing the line makes you feel invincible! Sign up to Brighton Marathon 2025 and from the buzz of start line to the thrill of the finish, you can make a difference with every step.
27 Apr
2025 TCS London Marathon
Runs
London
CHARITY PLACES NOW ALL FILLED. Take on the capital in 2025 and run for children's hospice care.
06 Apr
Southampton Marathon
Runs
South East
An epic course that takes you through the famous dock yards, along the coast, over the Itchen bridge and through St Marys Stadium. Then experience it all again on the second lap!

More marathons and ultra marathons:

  • Beachy Head Marathon:  October 21 2023 | One the biggest off-road marathons in the UK, popular for a scenic and challenging route through the South Downs National Park countryside. Great for runners, joggers, and walkers!
  • Running GP at Goodwood Motor Circuit: December 3 2023 | Run the famous Goodwood Motor Circuit, home to the Festival of Speed and Goodwood Revival. Enjoy the thrill of racing your way to a new chip timed personal best on this smooth traffic free tarmac motor racing circuit.
  • Race to the King: June 15 2024 | The ultimate ultra! A South Downs Ultra Marathon steeped in history taking in Chichester coast and Arundel Castle.

Half marathon

13 Oct
Royal Parks Half Marathon
Runs
London
NOW FULLY BOOKED FOR 2024. Be a half marathon hero in the only half marathon of it's kind, taking in four of London’s eight Royal Parks.
02 Mar
Brighton Half Marathon
Runs
Brighton
Be a Brighton Half marathon hero for Team Chestnut in one of the best half marathons in the south!
23 Feb
Eastbourne Half Marathon
Runs
South East
Be a half marathon hero in one of the flattest half marathons in the south east!
23 Mar
Hastings Half Marathon
Runs
South East
You'll travel through the city and along coastline, making the route diverse and interesting for your run!

More half marathons:

  • The Big Half: September 1 2024 | A vibrant, inclusive half marathon with a fun, festival atmosphere. The course starts at Tower Bridge and takes you all the way to the iconic Cutty Sark in Greenwich.
  • Barns Green Half: September 29 2024 | Run on closed roads through the beautiful West Sussex countryside, near Horsham.
  • Royal Parks Half: Date for 2024 not announced yet | Run on closed roads through four of the eight Royal Parks as well as being the greenest race of its kind in the UK.

Almost half marathon:

  • Great South Run: (10 miles) 15 October 2023| Considered as one of the world’s favourite 10-milers, with inspiring history and glorious sea views.

10ks

06 Apr
BM10k
Runs
Brighton
Be a 10k Champion with Team Chestnut as part of the UK's second biggest running event on Sunday 7 April 2024.
10 Sep
Littlehampton 10K
Runs
South East
Thank you everyone who took part in 2023. Unfortunately, due to planned seafront regeneration works, we are unable to hold the Littlehampton 10k this year.
02 Feb
Chichester 10k
Runs
South East
Be a 10k megastar and kick off the running calendar at the iconic Goodwood Motor Circuit.
09 Jun
Worthing 10k
Runs
South East
Don't miss this fast, flat and friendly 10k race along Worthing seafront.

Fun runs, 5KMs, trail runs and night-time events

  • Heave Castle Commando: 14-15 October 2023 | A fun and tough 3k, 6k or 12k commando obstacle race held in Hever Castle’s grounds.
  • South Downs Trail Run: 25 November 2023 | Choose the distance (12.4km, 18.5km or 21.2km) to run across the scenic  Downs on this all off-road race.
  • Dark West Sussex: 3 February 2024| A unique opportunity to run the hills, forests, and farm tracks of the South Downs at night!
  • Colour Rush Brighton: 11 May 2024 | Memorable, fun and colourful! A great run for all beginners.
  • Dawn on the Downs: 7 July 2024 | Choose from a 10km, 10mile, 5km options – and bring your pooch for this picturesque early morning race.
Tess after the marathon

Reasons to run

“I had a training plan. I ran four days a week... I’d get up at 5.30 all through the summer holidays. My life became very small. You have to be very focused and that’s why it was so great to have a charity like Chestnut to focus on."

- Tess, who ran the New York Marathon in memory of Hal

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