Katharina Thanderz (born 29 July 1988) is a Norwegian professional boxer who has held the WBC interim female super-featherweight World title and the European female super-featherweight title.
Professional career Thanderz began her professional sporting career as a kickboxer, a sport she began at the age of ten. After 18 years in the sport, 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.
In her first fight in her native Norway, she defeated Maria Semertzoglou for the vacant European super-featherweight title on 21 October 2017.
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.
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.
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.
After moving back up in weight divisions and securing three points wins, Thanderz returned to Wembley Arena to face Rhiannon Dixon for the vacant European lightweight title on September 30, 2023. She lost by unanimous decision with all three judges giving the fight to the English boxer by 100–90.
Personal life Thanderz was born to a Norwegian mother and a Spanish father in Oslo, Norway, where she spent the first seven years of her life. She moved with her family to Altea, Spain, where she still lives and trains.
Professional boxing record
ResultRecordOpponentTypeRound, timeDateLocationNotes18Loss16–2 Rhiannon DixonUD1030 September 202317Win16–1 Ioana FecioruPTS824 March 202316Win15–1 Edina KissPTS82 December 202215Win14–1 Tereza DvorakovaPTS613 May 202214Loss13–1 Terri HarperTKO9 (10), 14 Nov 202013Win13–0 Danila RamosSD1016 Nov 201912Win12–0 Monica GentiliUD817 Aug 201911Win11–0 Rachel Ball82 Mar 201910Win10–0 Tamara Nunez829 Jun 20189Win9–0 Bojana Libiszewska UD619 May 20188Win8–0 Valgerdur GudstensdottirUD810 Mar 20187Win7–0 Maria SemertzoglouUD1021 Oct 20176Win6–0 Karina KopinskaUD614 Jul 20175Win5–0 Mirabela CalugareanuTKO2 (4), 26 May 20174Win4–0 Mirabela Calugareanu2 (6), 18 Feb 20173Win3–0 Azahara SanchezPTS426 Nov 20162Win2–0 Jessica Sanchez423 Jul 20161Win1–0 Angela Cannizzaro427 May 2016
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