Curran began her amateur MMA career in 2010, amassing a record of 4 wins, 1 loss and 1 No Contest over the next two years.
Curran made her professional debut in March 2013 for the Pacific Xtreme Combat promotion in her native Hawaii. She was undefeated in her run with the company, winning all fights by unanimous decision.
In November 2014, Curran made her Ultimate Fighting Championship (UFC) debut against Paige VanZant. She lost the fight via TKO in the third round. Despite the loss, she was awarded Fight of the Night honors.