Pietra is originally from Brazil but lives on Long Island and graduated from Mineola High School in 2022. She was a four-year varsity starter for her high school team. After high school, she played Division III lacrosse at Manhattanville University, where she was a four-year member of the Valiants’ attack. During her collegiate career, she was named the Skyline Conference Rookie of the Year in 2023 and earned Second-Team All-Skyline honors in 2023 and 2025. She finished her career with 184 points on 126 goals and 58 assists, while also collecting 103 ground balls and 40 caused turnovers. She recorded several career milestones during her time at Manhattanville, including surpassing both 100 career points and 100 career goals.

In addition to her collegiate career, Pietra represents Brasil Lacrosse internationally in both Field and Sixes and competed with the Brazilian Women’s National Team at the 2025 PALA Sixes Cup in Puerto Rico. She also serves as Vice President of the Brasil Lacrosse Athletes’ Commission, where she works to represent athletes and support the continued growth of lacrosse in Brazil. With nearly 10 years of playing experience, Pietra is passionate about helping younger players develop their skills, confidence, and love for the game.