Honchak went 8-1 as an amateur mixed martial artist and made her professional debut on November 28, 2009. In her fourth professional fight, Honchak defeated Felice Herrig at Hoosier FC 6 on January 14, 2011. Honchak won three more fights in 2011, defeating Amber McAvoy and Nina Ansaroff by decision and Roxanne Modafferi by submission due to a rear-naked choke.
Honchak made her Invicta Fighting Championships debut on July 28, 2012 at. She defeated Bethany Marshall by TKO in the second round. On October 28, 2012, Honchak faced Aisling Daly at. She defeated Daly by unanimous decision. The victory over Daly earned Honchak a shot at the inaugural Invicta FC Flyweight title on April 5, 2013 at. She defeated Vanessa Porto by unanimous decision to become the first Invicta FC Flyweight Champion. Honchak faced Leslie Smith at on December 7, 2013. She successfully defended her Invicta FC title, winning via unanimous decision. Honchak faced Takayo Hashi at Invicta FC 9 on November 1, 2014 and successfully defended her title with another unanimous decision victory.
In August 2017, it was announced that after a few years away from the sport Honchak would be one of the fighters featured on The Ultimate Fighter 26, where the process to crown the UFC's inaugural 125-pound Women's Champion will take place. In the first round, Honchak defeated Gillian Robertson via TKO in the second round, allowing her to move on to the next stage of the competition. In the quarterfinals, Honchak faced Rachael Ostovich-Berdon and won the fight by unanimous decision after two rounds. In the semifinals, Honchak faced Nicco Montaño. She lost the fight via unanimous decision after three rounds.
Ultimate Fighting Championship
Honchak was scheduled to face Roxanne Modafferi on December 1, 2017 at. However, on the day of the weigh in, Sijara Eubanks was pulled from the fight for kidney failure while trying to make weight and she was replaced by Modafferi to face Nicco Montaño. Honchak instead faced Lauren Murphy. She lost the back-and-forth fight by split decision. The rematch between Honchak and Roxanne Modafferi was rescheduled to take place July 6, 2018 at. Honchak lost the fight via technical knockout in round two. Honchak was released by the UFC in August 2018.
