Career
Early career
Van Duin made her professional mixed martial arts debut in April 2013. She fought primarily in her native New Zealand and Australia, amassing a record of 4–1 before joining Invicta Fighting Championships. Invicta Fighting Championships
Van Duin was expected to make her promotional debut on December 5, 2014 at Invicta Football Club 10: Waterson versus
Tiburcio against Charmaine Tweet.
However, the bout was scrapped on December 3 after Tweet was medically disqualified from competing on the card. Van Duin eventually made her debut for the promotion on April 24, 2015 at Invicta Football Club 12: Kankaanpää versus
Souza when she faced Amanda Bell. Van Duin faced Cristiane "Cyborg" Justino for the Invicta Football Club Featherweight Championship on July 9, 2015 at Invicta Football Club 13: Cyborg versus