The Bison

Join us for the UK’s newest and highly challenging duathlon!

October 8th, 2016

Dunstable Downs and Whipsnade Estate 

“Tri One are organising a mega-duathlon this October, which in my opinion is one of the hardest in the country. It has the potential to become a classic race in the UK calendar.   £5 of every entry is going to the Triathlon Trust, the official charity of British Triathlon to help us work with more children. Get involved and ‪#‎TameTheBison‬ to help get Britain’s children active”
                                        – Mike Jubb, CEO, Triathlon Trust

Oct. 8, 2016  8:00 am

Chiltern Gateway Centre

Whipsnade Road


Bedfordshire LU6 2GY



The Bison: 13km Run, 30km Bike, 13km Run

Bison Sprint: 6.5km Run, 10km Bike, 6.5km Run

The Bison Trot: 6.5km Run

Bison Junior: 1.5km Run, 3km Bike, 1km Run



Saturday, Oct. 8, 2016
07:00 Onsite Registration
07:15 Transition open for all
07:45 Mandatory race and safety briefing on start line
08:00 Bison & Bison Sprint Start
09:00 Bison Trot Start
10:30 Bison Junior Start

Stay also RACE INFO tab.

Stay tuned also to our Facebook group for latest updates. 


About The Bison

For those looking for a seriously tough challenge, the UK’s newest and one of the toughest duathlons, The Bison, will take place on October 8, 2016, at Dunstable Downs, Bedfordshire.  This venue is considered a haven for gliding and kite flying, which tells you how hilly it is. The race HQ and transition area will be at the Chiltern Gateway Centre, which sits on the highest point in Bedfordshire.  The event is being organised by Tri One. 

Fun for all! 

The event will have an outdoor festival atmosphere, incorporating sports providers and local businesses onsite, including the Tring Brewery, who will make a limited edition beer especially for the event.

All finishers will receive the special Bison Medal. The event has the support of the National Trust and will be run annually. It will be on the “must do list” of any respectable endurance athlete.

It’s all for a good cause!

Tri One are partnering with the Triathlon Trust, the official charity of British Triathlon, with £5 of each entry going to the Trust. 

Multiple Distances! 

The Bison – 13km Run, 30km Bike, 13km Run

The Bison Sprint – 6.5km Run, 10km Bike, 6.5km Run

The Bison Trot – 6.5km Run

The Bison Junior – 1.5km Run, 3km Bike, 1km Run (for kids 8-14 on grass course) 



Club Discounts and Competition! 

Get a team of 10 together and you’ll only pay for 9 entries! Enter online as usual or email us your list of 10 entrants to to take advantage of this offer!  There will be a club competition and prizes, so get involved!

Partner with us! 

We are looking for partners interested in sponsoring prizes, goodie bag gifts, having a stand in our event expo or other sponsorship. Please e-mail to get involved in what is going to be an awesome event! 

Location of Event





Cover image copyright: Doug Hook from 

Other images by the National Trust. 

Event Partners & Organisations