Born in 2000 in Biella, Gregorio De Leo developed his passion for golf from his mother, who introduced him to the sport at the age of 6. It was love at first sight. After winning several tournaments early in his career, he turned professional in 2021, making his debut at the Italian Open. In 2022, he won the Alps Tour Order of Merit after claiming victory in three tournaments and also secured the PGAI Championship. Since 2023, he has been competing on the Challenge Tour.