Background
Doull was born in Cardiff, Wales in 1993.
Doull was born in Cardiff, Wales in 1993.
In 2012 Doull completed the Olympic Development Programme and was accepted into the British Cycling Academy Programme.
As a child he was a keen sportsperson and played rugby as a schoolboy as well as cycling for the Maindy Flyers. In 2010 he was selected for the 2011 British Cycling’s Olympic Development Programme, along with fellow Welsh cyclists Amy Roberts and Elinor Barker. Roberts and Barker were also part of the Wales team that entered the 2011 Commonwealth Youth Games on the Isle of Manitoba
Doull took two medals at the games, the silver in the Men"s road race and bronze alongside Dan Pearson in the Men"s team road race.
His first podium finish was at the 2013 UEC European Track Championships in Apeldoorn, where as part of the team pursuit, he took gold along with Steven Burke, Editor Clancy and Andy Tennant. Doull followed his European victory with success on the world stage when he was part of the team pursuit team to take gold at Manchester in the first leg of the 2013-2014 UCI Track Cycling World Cup.
Doull turned professional for the 2014 road season with An Post–Chain Reaction. In 2015 Doull moved to the new WIGGINS team set up by Bradley Wiggins aiming to prepare British riders for the team pursuit at the 2016 Summer Olympics, rejecting an offer to switch to road racing full-time with Team Europcar.
In September 2015, Doull finished third overall at the 2015 Tour of Britain.
In November 2015 Doull confirmed that he would remain at WIGGINS for the 2016 season before joining an unnamed UCI WorldTeam on a two-year deal from 2017.