Breaking new ground in mass-participation sport, Para Tri is the first event in the new Tribal Series, which give the UK’s 12 million disabled the chance to come together, compete and have fun on a dedicated playing field for the first time. Hundreds of participants, from first-timers to the elite, descended on Dorney Lake in Windsor for the UK’s biggest-ever paratriathlon in the lead up to Rio 2016, where the event will make its debut.