Having formerly represented Ireland at an international level, Horne has switched nationality and currently rides on the track for the Welsh Cycling backed Team USN, and also races on the road for the Breast Cancer Care racing team.

She competed at the national level until the age of 16 when she suffered a serious shoulder injury which required surgery.

However, plagued by injuries, Horne found that the majority of her training would be in the form of cycling and her love for the sport was born.

Horne's father was born in Barry, Vale of Glamorgan, Wales, she was therefore offered the opportunity to train with the Welsh Cycling Squad.

[8] Horne represented Wales at the Commonwealth Games in Glasgow, 2014,[9] competing in the time trial and individual pursuit.