Guildford Triathlon and Kids Aquathlon July 2026

Join us for the Guildford Triathlon & Kids Aquathlon on Sunday 20th July 2026

In support of Macmillan Cancer Support

We’re delighted to have Macmillan as our RunThrough Triathlon Partner in 2026. Macmillan has spent more than 100 years helping people living with cancer. From the moment someone is diagnosed, we're there with all the information, support and guidance they need, to help everyone with cancer live life as fully as they can.

Take on a Sprint triathlon or Kids TriStar Aquathlon around Guildford on Sunday 26th July 2026. 

This Sprint Triathlon is an exceptional choice for those chasing personal bests, first-time triathletes or those who prefer indoor pool facilities, at the prestigious Surrey Sports Park.

Following the pool swim, the bike course takes you out on the open roads towards Worplesdon, Pirbright and Normandy before returning to the Park and finishing off with a 5km scenic forest trail run.

The Kids TriStar Aquathlon is the perfect introductory event for children aged 8 to 14 looking to try for the first time or to improve on previous years. 

Try something new and join us at this fun, family-friendly event for an active morning out with your loved ones!

The Kids Tristar Aquathlons are the perfect introductory event for children aged 8 to 14 looking to try multipart – perhaps for the first time or to improve on previous years.

Try something new and join us at this fun, family-friendly event for an active morning out with your loved ones!