On March 1, 2015 at Ring of Honor's 13th Anniversary Show, Baszler accompanied reDRagon to the ring for their ROH World Tag Team Championship defense. After they won, she helped cut a celebratory promo, where they described her addition to the team as " our Ringo". After training under Josh Barnett, Baszler made her professional wrestling debut on September 26, 2015, losing to Cheerleader Melissa for Quintessential Pro Wrestling (QPG) in Reno, Nevada. Baszler was attacked by Nicole Matthews after the match, setting up a future match between them. On October 30, Baszler defeated Matthews in their first match against each other, but lost in their second meeting, a KO or submission only match in January 2016, won by Matthews via KO in just over 9 minutes. On January 23, 2016, at a Magnum Pro Wrestling event in Omaha, Nebraska, Baszler defeated Heather Patera. On July 17, Baszler defeated Ruby Raze to become the Premier Women's Champion at Premier XIII.