Ryan Gregson had an impressive junior career, setting the national age records to place fifth at the 2007 IAAF World Youth Championships and the 2008 IAAF World Junior Championships, followed by selection and competition at the 2009 IAAF World Championships. In his first year as a senior, he broke the 19-year-old Australian open 1500m record, running 3:31.06 in Monaco. He earned a semi-final berth at the 2011 World Championships and 2012 Olympic Games.
The next few years saw limited success with injury and illness restricting his performances but returned in 2016 with a boom year of results. After an undefeated domestic season, he claimed two IAAF Diamond League podiums before clocking his second fastest ever time in Monaco. In Rio, he progressed to the 1500m final, the first Aussie in 40 years to make the final.
A busy Nitro series launched his 2017 campaign. Shortly after he lowered the Australian indoor 1500m record in Birmingham, clocking 3:36.50. In April he defended his national 1500m crown, in a pedestrian tactical race. He competed in his fourth World Championships in London, placing ninth in his 1500m heat.
He opened his domestic season at the Commonwealth Games trials/Australian Championships, and any doubts of his form were dispelled with a strong heat win and come-from behind victory in the final to claim his third consecutive national title and a berth for his second Commonwealth Games.
In March he travelled to Birmingham to compete at the 2018 IAAF World Indoor Championships. In a tactical and slow 1500m heat, he placed third and missed qualification for the final by just 0.18 seconds. Back on the Gold Coast in April, he placed 9th in the 1500m final at the Commonwealth Games. After the Games he raced 11 occasions on the international circuit with a best result of 6th in the Rabat DL in a seasonal best of 3:34.38.
His nickname is the Little King, the meaning of his name ‘Ryan’. His fiancée is Genevieve LaCaze, a London 2012 and Rio 2016 Olympian and his co-captain of Team Australia at Nitro Athletics.