Distances & Prices

Team Relay: 500m Swim, 21.2km Bike, 5km Run
Team Time Trial: 500m Swim, 31.8km Bike, 5km Run
Triple Relay: 500m Swim, 15.9km Bike, 5km Run

Entering in a group of 10 or more? You could save up to 25% – click here for more information.

Please note that we also have other events which offer relay options, for example the Goodman Masson Diamond Triathlon.

Challenge_Cup_LogoThe Nuffield Health Tri Relays event is home to the Corporate Challenge Cup. Company teams are invited to take on corporations from across Great Britain in all categories of the tri-relay. Sign up now to take on some of the FTSE’s top companies for the bragging rights of Corporate Challenge Cup Champions! (please sign up using the standard form and don’t forget to register your company details.)

You can take part in the Corporate Challenge Cup across any of the three ways to take part in the event (Team Relay, Team Time Trial or Triple Relay). We will award the fastest team in each relay format with the following:

  • 3 x Nuffield Health Sports Performance Lab Tests at City Club, Cannon St. London (includes both a Vo2 and Lactate Profile test, and written report as part of your 1hr consultation with the sports performance team worth £200pp)
  • 20 x entries into a 2017 Human Race triathlon of your choice
  • The Corporate Challenge Cup trophy!

See full prize Ts & Cs here.

About the event

Eton Dorney Rowing Lake will transform into a fun-filled festival of triathlon, as it plays host to the third annual Nuffield Health Tri Relays – an event dedicated entirely to triathlon relays. Traditionally a solo sport, competitors of all natures, from club athletes through to groups of friends, families and colleagues, will get together in teams of three to a take on a combination of swimming, cycling and running.

The Nuffield Health Tri Relays offers three formats for competitors to choose from:

Team Relay – 500m Swim, 21.2km Bike, 5km Run
Grab a couple of mates, get yourself to Dorney and each take on one element of the triathlon. Perfect if you want to get involved in the camaraderie of triathlon and love swimming but aren’t as strong at cycling or running (or vice versa).

Team Time Trial – 500m Swim, 31.8km Bike, 5km Run
This format is perfect if you and two mates all love triathlon. All three of you will swim together, cycle together and run together as a unit. Your final time will be taken when all 3 of you cross the finish line. Normal drafting rules do not apply – we will set you off first on the day so that you can draft and use each other to post the fastest time possible.

Triple Relay – 500m Swim, 15.9km Bike, 5km Run
Once again, you need a team of 3, all 3 of you will take on the swim leg in a relay format – you swim, pass the metaphorical baton to your mate who swims, before the final team member then swims. You will then all move on to the cycle leg in the same order as you did the swim, before all finishing up with the the run in the same order. So it will be swim, swim, swim, bike, bike, bike, run, run, run. This format has the beauty of a leisurely transition between each leg while you wait for your team mates to finish their legs. There will be a specific transfer area in both swim transition and run transition for the handover of timing chips to occur and we will also provide an area for the first 2 team members to join the final member to cross the line together.

Event Benefits

  • Take part with your friends, colleagues or club mates
  • Iconic Olympic venue
  • Clean, calm lake waters
  • Fast, flat closed road bike and run course
  • Suitable for all abilities


  • Finisher’s medal
  • Well-stocked feed station with sugary goods, energy products and water
  • Free Parking
  • Electronic chip timing
  • Results texted to your mobile phone as you cross the line



  • 13:25 Triple Relay
  • 14:25 Team Time Trial
  • 14:55 Team Relay

Age Requirements

AGE REQUIREMENT: Minimum Age 15 at 31 December, 2017



Whilst having a BTF licence covers your liability to take part in our events it doesn’t cover your equipment. Why not check out the equipment section and our partner Yellow Jersey Cycle Insurance to see what they can offer?



hese results are provisional, and any queries should be sent to our Results Crew. These are compiled and any changes are shown in the final results here around a week after the event. If you are looking for results from previous years, please visit the main Human Race Results page.



We’ve teamed up with Zone3 to offer you some of their great range of wetsuits that are perfect for the event for you to hire or purchase.

Zone3 has quickly become one of the most exciting and successful brands on the market thanks to its high performance products which year on year have achieved the highest industry reviews based on speed, comfort, price point and innovation.

Zone3AdvanceZone3 are offering their Advance wetsuit as part of their hire service for Human Race. The Advance has won many awards including 220 Triathlon magazine’s “Best Buy” award and has become the market leader for first-timers and those on a budget. The suit is made from super flexible, highly buoyant neoprene for an assured swim performance.

You can purchase or hire a Zone3 wetsuit to make sure you’re fully prepared for your event. More details about how to book yours will be added soon.


We are often asked if wetsuits have to be worn at our events. But the wearing of wetsuits in triathlon is governed by British Triathlon rules and is totally dependent on water temperature one hour before the start of the event.

Water Temperature Wetsuit Rule
 Water Temp less than 14 degrees Wetsuits are COMPULSORY
 Water temp 14 – 22 degrees Wetsuits are OPTIONAL
 Water temp above 22 degrees Wetsuits are BANNED

We do say that wetsuits in fact help with buoyancy and warmth, so we strongly recommend that you wear one if they are optional. We will keep you updated with water temperature as we get closer to the event but at Dorney Lake it is almost always an optional wetsuit swim.

Wetsuits will be available to hire for the event with more details to be added here and communicated to entrants shortly.


You can hire a fully serviced and cleaned bike perfect for the event from our partners British Bike Hire.

British Bike Hire is one of the UK’s largest bike hire businesses who specialise in delivering great product for all categories of riders and provide excellent service. They offer a range of bikes to hire or purchase including: leisure, hybrid, mountain, racing and triathlon specifications.

Visit www.britishbikehire.co.uk and book via the online portal or email info@britishbikehire.co.uk for more information.

Travel & Accommodation

Eton College Rowing Centre, Dorney Lake, Windsor, SL4 6QP

The event will be held at the Olympic rowing venue for the 2012 Olympic Games.

Full on-site parking means you can come and go while the event is taking place, we have showers and toilets aplenty and there is catering in the Boathouse.

Detailed Road, Rail and Taxi Instructions HERE.

Accommodation Booking Service

Windsor and Maidenhead Crest

If you require accommodation we recommend using the Royal Borough of Windsor & Maidenhead’s accommodation booking service.

The service operates seven days a week and offers you:

  • Extensive local knowledge of Windsor, Maidenhead, Ascot and surrounding areas
  • A match service for your personal requirements
  • Preferential prices
  • A fast and efficient service
  • Known availability
  • Confirmation of booking.

Tickets to major attractions are also available through the Concierge box office service so why not let them help you to make the right choice and ensure your stay is a memorable one!

Accommodation Hotline: +44 (0)1753 743907
Email: windsor.accommodation@rbwm.gov.uk

Charity & Fundraising

Just GivingIf you’re looking for a way to make your event count, why not raise money for a cause you care about? Head to JustGiving, make a fundraising page in a few simple steps, and share it far and wide by email and social media.

Make your Tri Relays JustGiving page