Maevska has been practicing gymnastics since the age of 7, when she was a first grader. In June 2014, she and her fellow gymnasts from the Bulgarian group won a gold medal in the 10 clubs event of the 2014 Rhythmic Gymnastics European Championships. In September 2014, Maevska and her teammates won gold in the group all-around at the 2014 World Championships, a milestone success, as this occurred 17 years after the Bulgarian group had last claimed gold - at the 1996 World Championships. The team also earned a silver medal in 3 Balls + 2 Ribbons at the 2014 event.