[9] On 8 August 2013, at the Sir Chris Hoy Velodrome in Glasgow, Kay competed at the UCI Juniors Track World Championships.

She was part of Britain's Team Pursuit squad which also included Hayley Jones, Amy Hill and Emily Nelson.

[10] At the 2009 Dudley Track Open Grand Prix Kay was the winner of the omnium event.

[13] At the Coupe de France Fenioux Piste which occurred just before the 2016 Olympic Games, Kay finished fourth in the Omnium.

[14] Kay then won the bronze medal at the 2016 UEC European Track Championships in the team pursuit.