| Katharina Thanderz | |
| Nickname: | Katy[1] |
| Weight: | |
| Height: | 171cm[2] |
| Reach: | 172cm |
| Nationality: | Norwegian |
| Birth Date: | 1988 7, df=y |
| Birth Place: | Oslo, Norway |
| Style: | Orthodox |
| Boxrec: | 754899 |
| Total: | 18 |
| Wins: | 16 |
| Ko: | 2 |
| Losses: | 2 |
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.
Thanderz began her professional sporting career as a kickboxer, a sport she began at the age of ten. After 18 years in the sport,[3] 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.[4]
In her first fight in her native Norway, she defeated Maria Semertzoglou for the vacant European super-featherweight title on 21 October 2017.[5]
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.[6]
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.[7]
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.[8]
After moving back up in weight divisions and securing three points wins,[1] 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.[9]
Thanderz was born to a Norwegian mother and a Spanish father in Oslo, Norway, where she spent the first seven years of her life.[10] She moved with her family to Altea, Spain, where she still lives and trains.[3]
| Result | Record | Opponent | Type | Round, time | Date | Location | Notes | ||
|---|---|---|---|---|---|---|---|---|---|
| 18 | Loss | 16–2 |  Rhiannon Dixon | UD | 10 | 30 September 2023 | |||
| 17 | Win | 16–1 | Ioana Fecioru | PTS | 8 | 24 March 2023 | |||
| 16 | Win | 15–1 |  Edina Kiss | PTS | 8 | 2 December 2022 | |||
| 15 | Win | 14–1 |  Tereza Dvorakova | PTS | 6 | 13 May 2022 | |||
| 14 | Loss | 13–1 | Terri Harper | TKO | 9 (10), | 14 Nov 2020 | |||
| 13 | Win | 13–0 |  Danila Ramos | SD | 10 | 16 Nov 2019 | |||
| 12 | Win | 12–0 |  Monica Gentili | UD | 8 | 17 Aug 2019 | |||
| 11 | Win | 11–0 | Rachel Ball | 8 | 2 Mar 2019 | ||||
| 10 | Win | 10–0 |  Tamara Nunez | 8 | 29 Jun 2018 | ||||
| 9 | Win | 9–0 |  Bojana Libiszewska | UD | 6 | 19 May 2018 | |||
| 8 | Win | 8–0 |  Valgerdur Gudstensdottir | UD | 8 | 10 Mar 2018 | |||
| 7 | Win | 7–0 | Maria Semertzoglou | UD | 10 | 21 Oct 2017 | |||
| 6 | Win | 6–0 | Karina Kopinska | UD | 6 | 14 Jul 2017 | |||
| 5 | Win | 5–0 | Mirabela Calugareanu | TKO | 2 (4), | 26 May 2017 | |||
| 4 | Win | 4–0 | Mirabela Calugareanu | 2 (6), | 18 Feb 2017 | ||||
| 3 | Win | 3–0 |  Azahara Sanchez | PTS | 4 | 26 Nov 2016 | |||
| 2 | Win | 2–0 | Jessica Sanchez | 4 | 23 Jul 2016 | ||||
| 1 | Win | 1–0 | Angela Cannizzaro | 4 | 27 May 2016 |