South Coast Half Marathon, 10K & 5K

Seaford - Martello Fields
Charity runs

Get your place

  1. Sign up at the UK Triathlon website
  2. Get a sponsorship pack from us
  3. Get set and go!

Got a place already?

Already got your place? Join our team and get a sponsorship pack.

Take on one of the South Coast Run Series Challenges for Cancer Research UK and help us to beat cancer sooner.

Taking place on the same weekend as the South Coast Triathlon this run series has three distances for you to choose from. What's more, each race takes place in and around the town of Seaford in East Sussex, so you can enjoy some scenic views of the seafront.

Choose from the half marathon, 10K or 5K, get your sponsorship pack and help us bring forward the day when all cancers are cured.

Join CRUK right now and we'll get you to the finish line. We've got training and fundraising advice to prepare you for the big day, cheering packs for your friends and family, and a dedicated team ready to answer any last minute questions. 

Any questions? Click here to read our most frequently asked questions, which should provide you with all the information you need. Or, you can contact the Sports Team on 0300 123 5461.

Exclusive CRUK Cycling Jerseys and Shorts

We have partnered with Kalas to produce an exclusive eye-catching cycling range. Kalas donate 20% from every sale of this unique design direct to Cancer Research UK.

Get yours here:

Support for you

Training plans and advice

We've teamed up with the experts to give you the very best training support and advice for your event.

Get a cheering pack

Our pack includes a banner, clapper boards, cheering sticks, balloons, tattoos and running sacks.

Get a cheering pack

Set up a Cancer Research UK Giving page

Get help with your fundraising