Boscarelli started fencing at the age of twelve at CS Sannita in her native town of Benevento under the guidance of Carmine Bozzella. After earning her first regional and national successes she transferred to Naples where she trained with Sandro Cuomo. In 2007, she joined CS Esercito, the sport section of the Italian Army. She won her first senior national championship and earned a team gold medal at the 2007 European Championships in Ghent, followed by a team bronze medal at the 2008 edition in Kiev. She was also a member of the Italian team that took a bronze medal in 2009 Summer Universiade in Belgrade.