[4] After leaving judo during her teenage years Davies started MMA in 2013 alongside Brett Johns,[8] Davies won her first four MMA fights by first round submission, then decided to focus on learning Brazilian jiu-jitsu; she trained under Chris Rees, the first Welsh black belt in jiu-jitsu, receiving her blue belt from him at his Academy in Swansea.

[10] After attending seminars of black belt Darragh O’Conail, Davies moved to Dublin, to start training at East Coast Jiu-Jitsu.

[13] At the start of 2019 she won the European Championship, the Polaris Grappling Invitational,[14] the Abu Dhabi Grand Slam London, and then became Pan American Champion after winning Gold in California.

"[21] In early 2022, Davies started training at Essential Jiu Jitsu (an Atos affiliated academy), under the coaching of JT Torres.

[25] Davies defeated Giovanna Jara in the opening round before being submitted by the eventual champion Elisabeth Clay in the semi-final.

[35] Davies was then scheduled to defend her flyweight title against Amanda Alequin at Who's Number One 22 on February 9, 2024,[36] but she withdrew from the match due to undisclosed reasons.

[39] She then competed in the main event of Subversion 5: Reign against Nikki Lloyd-Griffiths for the promotion's inaugural featherweight title on April 6, 2024.

[41] Davies faced Morgan Black in a bantamweight submission grappling match in the co-main event of ADXC 4 on May 18, 2024.

[47] Davies will face Adele Fornarino in the main event of UFC Fight Pass Invitational 10 on March 6, 2025.