In 2017, Mazur started the post-Olympics season competing at the Miss Valentine Cup, where she won the all-around gold with a total of 64.750 points. On March 17–19, Mazur competed at the Kiev Grand Prix finishing 5th in the all-around. On March 24–26, Mazur competed at the Thiais Grand Prix finishing 6th in the all-around, she qualified to 3 event finals taking silver in ball, placed 5th in hoop and 8th in clubs. On March 31 - April 2, Mazur competed at the 2017 Grand Prix Marbella finishing 10th in the all-around and qualified to 2 apparatus final. On April 7–9, Mazur competed at the 2017 Pesaro World Cup finishing 12th in the all-around. Her next event, Mazur again finished 12th in the all-around at 2017 Tashkent World Cup. On May 5–7, Mazur competed at the 2017 Sofia World Cup finishing 11th in the all-around. On May 19–21, Mazur along with teammates Olena Diachenko and Yeva Meleschchuk represented the individual seniors for Ukraine at the 2017 European Championships, she qualified in 2 apparatus finals. Her next event at the 2017 World Challenge Cup Guadalajara, Mazur finished 11th the all-around, she qualified in 1 apparatus final in clubs and won the bronze medal - her first world cup medal. On June 23–25, Mazur competed at the 2017 Grand Prix Holon finishing 9th in the all-around. Mazur competed at the quadrennial held 2017 World Games in Wrocław, Poland from July 20–30, She qualified in 3 apparatus finals but did not medal. On August 30 - September 3, at the 2017 World Championships in Pesaro, Italy; Mazur finished 17th in the all-around finals. Shortly after Worlds, she announced her retirement.