TRI IT 2019

Multiple dates

Event detail

  • Multiple dates

Cycle 100 miles, swim 1 mile and run 10K - up for the challenge then why not TRI IT! 

TRI IT 2019 has now closed. If you are interested in taking part for 2020 then please register your interest by emailing

Take on the RideLondon-Surrey, Castle Hever Outdoor Swim and Crohn's & Colitis UK's Run the Night to be our first TRI IT champion!

Alternatively, find a couple of friends/family members and complete as a team taking a leg each! If you would like to take part as a team, please select a team captain to register and then email to let us know your team members and who is completing which event. 


To be awarded a TRI IT medal, participants must cycle the spectacular 100 miles of the RideLondon-Surrey 100, complete the one-mile swim in the beautiful setting of Hever Castle and run our very own unique 10K night course round the city of London.


Sunday 4th August:
RideLondon-Surrey is a 100-mile route on closed roads through the capital into Surrey's stunning countryside before returning to the capital to finish on The Mall. 

Sunday 29th September:
Described by many triathletes as the 'best open water swim ever completed' enjoy a unique and stunning swim route in the Castle Lake and River Eden whilst circumnavigating 16 Acre Island at your own pace.  

Thursday 17th October: 
Our unique 10km course takes you into the depths of a Thames tunnel and through light and sound installations across the London Docklands, followed by an exclusive after-party.

We ask all of our TRI IT challengers to pay a £50 registration fee and commit to raising a minimum of £700 in sponsorship.

Be triumphant today for those living with Crohn's and Colitis - TRI your hardest and put some UMPH into it!