Education
She attended Westwood College (now Harris Academy Falconwood). Gemma studied at the London Leisure College, the sports, leisure and travel department of Greenwich Community College, between 2004 and 2006 on "BTEC National Award" and "BTEC National Certificate in Sports and Exercise Science" courses.
Career
Competing in the women"s −70 kg category, she has represented England and Great Britain at Junior, U-23, "B" and Senior level Born in Charlton, London, Gibbons began practising Judo at six years of age with the Metro Judo Club in Blackheath, London. Gibbons represented Greenwich in judo at the London Youth Games.
She is also the 2013 patron for London Youth Games and was inducted into the London Youth Games Hall of Fame in 2012.
The couple also now reside in the city. She subsequently put her studies for a physical education teaching degree on hold, to concentrate on working towards competing at the 2016 Summer Olympics in Rio de Janeiro.
Kate Howey, Performance Development Squad Coach for 2012 stated that Gibbons "is one of our best medal hopes for judo" in the 2012 London Olympic and Paralympic Games. Television coverage of the Olympics showed footage of Gibbons looking upwards and mouthing "I love you mum" after winning her semifinal match.
Gibbons had lost her mother to leukaemia years earlier.
Membership
Gibbons started training with the Metro Judo Club, and after training with UELSports at the University of East London, is now a member of the British Judo Performance Institute.