Hall finished first at the UK's Strongest Man 2011 competition in Belfast, with Ken Nowicki in 2nd and Rich Smith in 3rd. His win was helped by setting a new national record in the "Viking Hold", hanging on to 20 kg axes in each hand at full stretch for one minute and 18 seconds. Hall tore tendons in an arm during the competition, but was hopeful of a spot at the World's Strongest Man in September. However, his improved ranking could only guarantee a spot for 2012, and he did not compete at WSM in 2011. Winning the UK title meant that Hall became the first choice to replace Jono MacFarlane of New Zealand in the Giants LiveMelbourne event in February 2012, when the latter suffered a back injury. He placed fourth in his first taste of international competition. Later, in April 2012, he was invited to compete at Europe's Strongest Man, another Giants Live event. This was held at Headingley Carnegie Stadium, home of the Leeds Rhinos rugby league team and Hall found himself competing alongside six of the ten finalists from World's Strongest Man 2011, including four-time World's Strongest Man, Žydrūnas Savickas. Hall finished in eighth place. In April 2013, Hall failed to qualify for Europe's Strongest Man 2013. However, he was given a second chance when Ervin Katona was forced to retire due to injury. Hall competed in his place and came in eighth place. In April, Hall also featured on BBC One's Watchdog programme, who enlisted his help to test even the strongest of drivers in specific circumstances. In 2012, Hall competed at the World's Strongest Man finals, but did not progress beyond his qualifying group. Hall returned in 2013, winning two events in his heat but narrowly missing out on qualifying after a poor final event. In 2014, Hall reached the final for the first time, coming second in the Squat Lift event and ultimately finishing 6th. In March 2015, Hall achieved the world record for lifting the weight of in the deadlift. The record was achieved at the Arnold Classic in Australia, and Arnold Schwarzenegger was present to cheer him on. He promptly broke his own record at the World Deadlift Championships 2015, with a deadlift. In 2015 he also finished 4th at the World's Strongest Man, an improvement of two places on the previous year. In March 2016, he achieved a new world record long bar deadlift in the Arnold Classic Strongman, by lifting. In December 2015 a feature documentary about Hall, titled , was released. The film, directed by Matt Bell and produced by Tom Swanston, follows Hall for two years of his life as he strives to become the strongest man in the world. In July 2016, Hall set a new world record in the deadlift with a lift of besting the world record he had previously set at earlier that same day. The 500 kg lift made Hall pass out. He is the winner of 2017 World's Strongest Man competition and announced his intention to retire from the World's Strongest Man and return to lower-weight competitions after expressing health-related concerns. In an interview, Hall stated that a genetic analysis had shown that a genetic mutation that causes myostatin-related muscle hypertrophy contributed to his large muscle mass. In 2018, Hall appeared on the Channel 5 show Celebs In Solitary, where he attempted to spend five days in solitary confinement.
