After 18 years in the sport,[4] she made her professional boxing debut on 27 May 2016, scoring a four-round unanimous decision (UD) victory over Angela Cannizzaro at the Polideportivo Jose Caballero in Alcobendas, Spain.
[6] On 10 March 2018, Thanderz defeated unbeaten Icelandic boxer Valgerdur Gudsteinsdottir by unanimous decision at X Meeting Point in Oslo to win the vacant WBC female lightweight International title.
[7] Thanderz claimed the vacant interim WBC female super-featherweight title with a split decision win over Danila Ramos at Ekeberg Hall in Oslo on 16 December 2019.
[8] In her next fight she challenged WBC and IBO female super-featherweight champion Terri Harper on 14 November 2020, suffering a ninth-round stoppage defeat at Wembley Arena in London, England.
[9] After moving back up in weight divisions and securing three points wins,[2] Thanderz returned to Wembley Arena to face Rhiannon Dixon for the vacant European lightweight title on September 30, 2023.