Nicknamed "The Lancashire Rose", Ashton formerly competed in British Darts Organisation (BDO) events.

Ashton reached the quarter-finals of the 2007 Women's World Masters, beating 1996 finalist Heike Jenkins (Ernst) in the last 16 before losing to Rilana Erades.

[4] Ashton reached the final of the 2013 BDO World Darts Championship after defeating both Deta Hedman and Sharon Prins 2–0, before she eventually lost to Anastasia Dobromyslova 2–1.

Ashton hit ten 180s on her way to winning the 2014 BDO World Darts Championship at the Lakeside Country Club, which had 16 women qualifiers for the first time in its history.

At the Winmau World Masters, she lost in the final to Aileen de Graaf after missing six match darts.

At the 2016 BDO World Trophy, she hit a record three-dart average for a televised women's match of 98.85.

[8] In the 2017 BDO World Darts Championship, both Ashton and Corrine Hammond reached the final without losing a set.

In February, she played in the 2022 World Seniors Darts Championship and got a bye into second round, where she lost 1–3 by sets to Terry Jenkins.