The duo won the European gold and World Cup bronze in 2012, and a finished in fifth-place[2] in front of a home crowd at the London 2012 Olympics.

"[3] In the 2014 season she finished fourth at the World Cup in Shanghai, then combined with Barrow to win a silver medal at the Commonwealth games held in Glasgow, 2014.

[10] In the Rio Olympics, Couch and Lois Toulson won fifth place in synchronized 10m platform with a score of 319.44.

[13] She participated in Diving World Series 2017 Beijing between 3–5 March 2017 competing in the Women's synchronised 10m, teamed with Toulson and finishing in fifth place with a score of 294.72.

[1] Following her retirement,[17] Couch received a special recognition award at the British Diving Championships on 26 January 2018.

She appeared as a diving pundit as part of the BBC's coverage of the 2024 Summer Olympic Games.