Jazz Carlin’s international breakthrough came in 2009 when she was selected for the World Championship team after two bronze medals and a silver at the British Gas Swimming Championships in Sheffield.
The Welsh swimmer immediately made her mark at the highest level, helping the British 4x200m Freestyle Relay quartet to bronze in Rome.
The following season, Carlin proved she was more than just a relay swimmer as she became the first Welsh female swimmer in 80 years to win two medals at one Commonwealth Games by scooping 200m Freestyle silver and 400m Freestyle bronze in Delhi.
The combination of recurring tonsilitis and glandular fever disrupted her progress during 2011 and 2012, but after the disappointment of missing out on a first Olympic Games, Carlin bounced back in style with a hat-trick of golds across 400m, 800m and 1500m Freestyle at the 2013 British Gas Swimming Championships then a fourth-place finish in the 400m Free at the 2013 World Championships in Barcelona.
She hit top form in 2014, winning the Commonwealth, European and British titles over 800m Freestyle as well as European and British gold and Commonwealth silver in the 400m Free, lowering her Welsh records over 200m, 400m and 800m Free over the course of the season.