She made her debut in 2004 on the ISSF "world stage during the European Championships in Nicosia, where she finished in 16th position.

In 2008, as well, she gained a silver medal for Supporting Merit and "was also awarded the "Discobolo d’Oro" (Golden Discus) by the Italian Sports Centre National Council.

Bacosi continued to place Bronze in the World Cup Finals in Abu Dhabi (2013), Gabala (2014), Nicosia (2015), Rome (2016), and then subsequently won Silver in New Delhi in 2017.

Bacosi's biggest achievement was when she won the Olympic gold medal in Women's Skeet Shooting in Rio de Janeiro in 2016.

In 2019, Bacosi began competing in the Skeet Mixed Team (SKMIX) and won Gold that year in Lonato and Silver in Minsk.