At the 2013 LA Lights, she won the silver medal in the all-around behind teammate Ganna Rizatdinova. She then competed at the 2013 Holon Grand Prix where she finished 12th in all-around and won gold in clubs final. She finished 5th in all-around in her first World Cup competition of the season in Lisbon, Portugal. At the 2013 Irina Deleanu Cup, she won the silver in all-around and bronze in clubs. She won another bronze medal in hoop final at the Pesaro World Cup. She withdrew from the Sofia World Cup due to an aggravated injury. Maksymenko then competed at the 2013 European Championships in Vienna, Austria and together with her teammates ( Ganna Rizatdinova and Viktoria Mazur ) won the Team silver medal. Maksymenko competed at the International Trophy "Ciutat de Barcelona" where she won silver in All-around behind Russian gymnast Alexandra Merkulova. At the 2013 Summer Universiade in Kazan, she finished 4th in all-around behind teammate Ganna Rizatdinova. She won silver in hoop (tied with teammate Rizatdinova) and bronze in clubs (also tied with Rizatdinova). Maksymenko together with Rizatdinova and Mazur appeared in an editorial on the 2013 August edition of Ukraine Vogue. Maksymenko competed at the 2013 World Games in Cali where she won bronze medal in ball and clubs. Maksymenko won a bronze in Clubs at the 2013 World Championships in Kiev, Ukraine. Maksymenko finished 7th in the All-around at the 2013 World Championships. Maksymenko completed her career at the end of the 2013 season and accepted the invitation of her coaches in the Deriugins School to work as a coach.