Event Day

Kit Checklist


  • Security wristband (and Team Meeting Point wristband for relay teams)
  • Photo Identification (e.g. driver’s licence, passport) to collect your timing chip
  • Race numbers correctly fixed to bike, helmet, and clothing (race belt recommended)
  • Wetsuit
  • Goggles (compulsory for the swim)
  • Towel
  • Bike
  • Bike Helmet
  • Bike Insurance (recommended but not compulsory)
  • Cycle shoes (if you have them)
  • Bike water bottle
  • Running shoes
  • Warm clothing for afterward
  • Energy Bar/Gels
  • GPS multi-sport watch
  • Shower in a Can


The triathlon-specific wetsuits will not only keep you warm but will also help you swim faster as it provides you with extra buoyancy. Surf and shortie wetsuits are allowed, but these are totally different to a triathlon specific wetsuit, which is designed for open water swimming and fits like a second skin. For more information on wetsuits visit our Official swim partner Zone3 here.


If you haven’t already done so, the easiest way to hire a wetsuit for the day is to visit Zone3 where you can get an award-winning Zone3 wetsuit for the day. We strongly advise you to swim in your wetsuit before the event. Practicing getting out of the wetsuit will help with your transition on the day too.

*You will be given a swim cap at Swim Assembly so no need to bring your own, but googles are compulsory and aren’t provided.*



Find out how to correctly put on a wetsuit with these tips from Zone3 and avoid cosmetic damage from nails and jewellery. If you haven’t tried on or swum in a triathlon wetsuit before there are a few things you need to consider – from fit, to actually getting the thing on! The Zone3 product development team work hard to ensure their wetsuits are super flexible, ultra-buoyant, made using the world most technically advanced materials so you can  benefit and ultimately #ReachNewLimits this year. For more information, see our wetsuit buying guide.


Fixed wheel bikes (bikes that use the pedals as a brake) are not permitted in the race. Your handlebars must not have bare open metal ends. Please obtain stoppers to plug them before coming to the race. BTF referee bike checks can potentially stop you competing.


*A bike helmet is compulsory.*

Approved cycling safety helmets of ANSI Z90.4, SNELL B90, EN 1078 or an equivalent national standard must be worn by competitors. (NOTE: a CE mark is NOT an approval mark).

NB: any helmet bought in recent years will comply but check for damage which would stop it protecting you properly. 


Be prepared with PedalSure our Triathlon Insurance Partner who will provide you with a 20% discount to cover you and your bike. Don’t let an accident or theft create an obstacle to your training or event day. Find out more here: www.pedalsure.com/london

Not sure if you need insurance? Find your answer with our guide. 


You will be able to remove your bike from Transition immediately after racing and you must remove your bike and equipment from Transition within 1.5 hours of finishing and prior to the venue closing times. The organisers reserve the right to remove any equipment left in transition beyond the above times. The Support Team will check the bike number against the wristband number before it is released.

*One of our biggest issues post-event is caused by people taking the wrong wetsuit from Transition, please take a few seconds to check that you have your own wetsuit, most are black and look very similar.*


Drafting is not allowed at the triathlon – anyone caught drafting outside of the Elite field will be disqualified from the event.


Leading sports nutrition company Science in Sport (SiS) will be providing some of their award winning nutrition products to fuel your performance at the water station on the Run Course and at the finish. Please get used to re-hydrating as part of your training. Remember it is vital to drink regularly during and after exercise