Călugăreanu took up fencing at the age of twelve under the guiding of Petre Ducu and Florin Gheorghe, who remain her coaches as of 2016.[1] She won her first junior World Cup tournament in 2014 in Timișoara,[2] ending the 2014–15 season with a No. 1 position in World junior rankings.[1]
She took part in her first senior competitions during the 2011–12 season and she joined the senior Romanian national team for the 2013 European Championships in Zagreb.[3] In 2014, she won the silver medal at the Romanian championships, after losing in the final to Steaua teammate Maria Boldor. They went on to win the team gold medal together.[4] The same happened in 2015.
In the 2015–16 season she earned a silver medal at the World Cup satellite tournament in Ankara.[5] In April she qualified to the Fencing at the 2016 Summer Olympics through a top-four finish at the Prague pre-olympic tournament.[6]
She competed at the 2022 World Fencing Championships held in Cairo, Egypt.
Romania