Born in Cardiff, Doull took his first steps in cycling with local club the Maindy Flyers, eventually giving up a promising career in his other sporting love, rugby, as well as a childhood ambition to become a fireman, an obsession which saw him break his collar bone as a three-year-old when he fell off the sofa while watching passing engines.
The decision, at the age of 14, to focus on cycling paid dividends when Doull was selected for the 2011 British Cycling Junior Academy.
His elevation to the Senior Academy in October 2012 saw Doull’s rapid rise through the ranks continue just four months later when, at the age of 19, he was selected for his debut UCI Track Cycling World Championships, in Minsk, Belarus, where he came a creditable fifth in the scratch race.
By later in 2013, Doull had emerged as a regular feature in an often-successful Great Britain team pursuit squad, claiming a gold medal at the 2013 UEC European Track Championships in Apeldoorn, Netherlands, alongside Steven Burke, Ed Clancy and Andy Tennant; the foursome edging out Russia in an exciting final ride.
Less than a month later, at the start of November 2013, the same line-up won gold in the opening round of the UCI Track World Cup Series, on his home track at the National Cycling Centre, Manchester, and further success came in the next round, at Aguascalientes, Mexico, where a bronze medal in the team pursuit was followed by individual success when Doull won gold in the scratch race.
Road to Rio
Doull’s cycling versatility was already coming to the fore by April 2014, however, when he won the Triptyque des Monts et Chateaux, a prestigious Belgian road race comprising four stages. Riding for the Great Britain Olympic Academy road team, victory in stage three, also clinched overall victory in the general classification for the young Welshman, his name being added to an illustrious list of previous winners which includes Matthew Hayman, Stijn Devolder, Lars Boom and Tom Dumoulin.
There was a less successful road race outing for Doull, riding for Wales at the 2014 Commonwealth Games in Glasgow, when he failed to finish the race and his personal frustrations continued on the track where he narrowly missed out on medals, finishing fourth in both the individual pursuit and points race.
By later in 2014, however, Doull was back on track, and claiming his second gold medal at a UEC European Track Championships in the unusual setting of the Caribbean island of Guadeloupe, a French overseas region. Alongside Clancy, Tennant and Jon Dibben, Doull won the gold medal ride against Germany on the concrete, outdoor track with a 333-metre circumference, much larger than the typical, standard 250-metre indoor tracks.
In December, Doull ended a successful year in style with his most successful UCI Track Cycling World Cup meeting to date, in London, where he won double gold, in the team pursuit and in an exciting Madison ride with team mate Mark Christian.
Success on the road
The 2015 season started promisingly, at the UCI Track Cycling World Championships, in Paris, where the familiar line-up of Doull, Clancy, Tennant and Burke won silver behind New Zealand in the team pursuit although the Welshman was also turning in some eye-catching, sprint performances on the road.
Having turned down an offer to turn professional for Team Europcar, Doull opted to become part of the Wiggins road team, established by Great Britain team mate Sir Bradley Wiggins to help prepare riders for the 2016 Olympic Games.
At the Fleche du Sud stage race in Luxembourg in May, Doull won two stages and the points jersey before, later in 2015, adding another points jersey, and a third-place overall finish, at the Aviva Tour of Britain.
After a successful road season, Doull ended the year in style back indoors, winning his second European Track Championships in the team pursuit, beating hosts Switzerland at the Velodrome Suisse in Grenchen.
With sights set firmly on the Rio Olympic Games, Doull and the Great Britain team pursuit squad also made a promising start to the 2016 campaign in March, winning silver at the UCI Track Cycling World Championships in London, losing out to Australia in a thrilling final at a packed Lee Valley VeloPark.
Two months later, while riding the Tour of California with his Wiggins team, it was announced that Doull would sign for Team Sky, on a two-year contract, from 2017, the fulfilment of an ambition he has harboured ever since the British-based team came into existence in 2010.
To cap a perfect year for the young Welshman, he then teamed with Clancy, Burke and Wiggins to break the world record twice in the team pursuit at the Rio Olympics, eventually winning his first Olympic gold medal by beating Australia in the final.
|UCI Track Cycling World Championships, London (UK)||Team pursuit||Silver|
|Olympic Games, Rio de Janeiro (Brazil)||Team pursuit||Gold|
|UCI Track Cycling World Championships, Saint-Quentin-en-Yvelines (France)||Team pursuit||Silver|
|Aviva Tour of Britain (UCI 2.HC)||General classification||3rd|
|Aviva Tour of Britain (UCI 2.HC)||Points classification||1st|
|UEC European Track Championships, Grenchen (Switzerland)||Team Pursuit||Gold|
|UCI Track Cycling World Cup, London (UK)||Team pursuit||Gold|
|UCI Track Cycling World Cup, London (UK)||Madison||Gold|
|UEC European Track Championships, Guadaloupe (France)||Team pursuit||Gold|
|UCI Track World Cup, Aguascalientes (Mexico)||Scratch||Gold|
|UCI Track World Cup, Aguascalientes (Mexico)||Team pursuit||Bronze|
|UCI Track World Cup, Manchester (UK)||Team pursuit||Gold|
|UEC European Track Championships, Apeldoorn (Netherlands)||Team pursuit||Gold|