King began gymnastics at the age of eight. She competed with the British team that finished seventh in the team final at the
2007 World Championships. After the World Championships, she finished fourth on the vault at the DTB Cup, only 0.025 points away from the bronze medal. She then won the vault gold medal at the Glasgow Grand Prix. In December 2007, she won a bronze medal on the vault at the Good Luck Beijing International Tournament, behind
Cheng Fei and
Hong Su-jong. At the 2008 Maribor World Cup, King won the vault silver medal, behind
Hong Un-jong. She then helped the British team place sixth at the
2008 European Championships. She placed sixth in the all-around at the British Championships and also won a silver medal on the vault. She was then selected to represent
Great Britain at the 2008 Summer Olympics alongside
Becky Downie,
Beth Tweddle,
Hannah Whelan,
Rebecca Wing, and
Laura Jones (later replaced by
Imogen Cairns). The team finished ninth in the qualifications and did not advance into the final. King competed on the vault and the floor exercise at the
2009 World Championships, but she did not advance into either final. In 2010, King began competing for the
Florida Gators gymnastics team. At the
2010 NCAA Championships, she advanced into the vault and floor exercise finals, finishing fourth and fifth, respectively. She earned a total of four
All-America honors during her freshman year. King won a silver medal on the vault at the 2010 British Championships and was named to the
2010 Commonwealth Games team. She won the vault title at the
2011 NCAA Championships. The next year, she helped Florida win the team
SEC Championships and place second at the
2012 NCAA Championships. She returned to elite competition in 2012 in an attempt to qualify for the
2012 Summer Olympics, but she was not selected for the team. At the
2013 NCAA Championships, King helped Florida win its first-ever NCAA team title. == Coaching career ==