[2][3] In 2017, the year of her last recorded fight to date, she was ranked #2 in the world in the women's flyweight category.
She continued to train for ten years, acquiring competition experience, until her brother convinced her to try Brazilian Jiu-Jitsu.
Over the next year and a half, she amassed a record of 7 wins against no losses before joining Invicta FC.
Niedźwiedź made her American debut at Invicta FC 18: Grasso vs. Esquibel against Christine Stanley and won via unanimous decision.
Niedźwiedź was offered a place on The Ultimate Fighter (TUF), but declined, citing her appreciation of the high skill level in Invicta FC and her reluctance to be apart from her young son.