In 2017 Season, Baldassarri made her senior international debut at the International tournament " Città Pesaro, where she managed to win the bronze medal in the All-around, silver at the ribbon final and gold at the club's final, ahead of Russian Ekaterina Selezneva. In May 2017 she competed at 2017 Sofia World Cup, her first world cup, where she took the 10th place in the AA. On 19–21 May, Baldassarri, along with teammates Alexandra Agiurgiuculese and Alessia Russo represented the individual seniors for Italy at the 2017 European Championships, where she qualified in the ribbon finals finishing in 7th place.