About the race

Tri Together triathlons follow the traditional format of swim - bike - run.


The swimming challenge will kick off the triathlons and take place in an accessible 25m pool. The race is staggered according to your estimated swim time and stroke given to us when you register, with slower swimmers starting earlier in the day. Participants can swim in their preferred swimming style of either front crawl, breast stroke or freestyle (a mix of both).

There will be a dedicated wide lane for disabled swimmers and trained volunteers on hand to assist in and out of the water.


The course for the bike stage of the triathlons in both London and Glasgow is on closed roads around the leafy public parks.

  • For juniors, the cycle course consists of the same course as the adults but with fewer laps.
  • For non-disabled athletes, a road bike is suggested, but you can complete the course on a mountain bike if required.
  • For wheelchair athletes who want to take part in the cycle and cannot compete on a regular bicycle, you have the option to take part using a handcycle, a recumbent bicycle or a tandem bicycle. Please email tritogether@leonardcheshire.org if you need assistance in sourcing or hiring a bike for race day.


The run at both triathlons will take place on hard compacted gravel or tarmac footpaths with the parks or around the permieter. Participants can complete this section by running, jogging, walking, or in a wheelchair.

Crystal Palace Parkrun hold timed 5k runs in Crystal Palace Park every Saturday morning at 9am. It's a good opportunity to try out the terrain and see what time you can expect to run the Tri Together London course in. It's free to attend, but you need to register beforehand. Visit the Crystal Palace Parkrun website for more details.

For specific race distances and maps for each location, visit our London race page and our Glasgow race page.

British Triathlon Federation rules

The race is governed by British Triathlon Federation (BTF) rules, which can be viewed in full on the British Triathlon website. These are basic but necessary for the safety and enjoyment of competitors, spectators and the general public. Here are some of the main points:

  • It is the competitor’s responsibility to know and correctly complete the full course of the event.
  • Triathlons are individual endurance events. Any teamwork or outside assistance that provides an advantage over the other competitors is expressly forbidden.
  • Foul or abusive language is not permitted — nor tolerated!
  • Number belts are allowed but please ensure that the number is displayed on your back on the bike and on your front during the run. If using safety pins, they must be attached at all four corners.
  • You must supply your own bike and cycle helmet. Bikes must be in a safe and roadworthy condition with brakes in good working order. Spot checks will be made to verify this. No fixed wheel bikes allowed.
  • All competitors must ensure that they are adequately clothed at all times. The minimum being a one or two piece, non-transparent swim suit.
  • Cycle helmets must be approved by BSI, ANSI, Snell or equivalent standards authorities. Your cycle helmet must be on your head and done up before you touch your bike to take it from the rack. You must not undo it until the bike is re-racked at the end of the bike section.
  • If you have any questions please feel free to ask at registration, or any of the marshals.

Parents, worried about your child's safety?

We've put together a document outlining all the provisions we have taken in the planning of this event to make sure your child is as safe as possible when taking part in Tri Together. In addition, you can read our general volunteering policy and our child protection policy.