Before starting her MMA career, Couture worked as a casino executive in Las Vegas. She got involved with MMA upon looking for a workout routine but did not consider becoming a MMA fighter until Gina Carano joined the Xtreme Couture gym.
Couture made her MMA debut against Kim Rose at Banner Promotions: Night of Combat on June 20, 2008. She suffered a broken jaw in the first round of the fight but continued fighting and the it ended in a unanimous decision win for her opponent. She was also negotiating a contract with American Fight League at this time.
Kim was married to three-time former UFC Heavyweight ChampionRandy Couture.
Kim & Randy have filed for divorce, with Randy continuing to coach and support Kim's MMA career. She has a son named Oakley from a previous marriage.