Madeleine Zimmer

Personal life Zimmer was born in Owatonna, Minnesota and raised in Hershey, Pennsylvania. A torn anterior cruciate ligament in her left knee ended her senior year high school field hockey season in 2019. She was a three-time Pennsylvania all-state selection and a three-time Max Field Hockey All-American.

College Zimmer played midfield for the Northwestern Wildcats from the 2020–21 season through 2025. She redshirted the 2023 season to train with the United States national team ahead of the 2024 Summer Olympics.

In 2020–21 she was named Big Ten Freshman of the Year and an NFHCA Third Team All-American after recording four goals and one assist. Northwestern finished 23–1 and defeated Saint Joseph's 5–0 in the NCAA Division I championship game. Zimmer scored two goals in the final and was named the tournament's Most Outstanding Player for a second time. After the season she was named Big Ten Player of the Year, NFHCA West Region Player of the Year, NFHCA Division I Player of the Year, and the Honda Sport Award winner for field hockey.

Junior national team Zimmer made her debut for the United States U–21 team in 2019, during a test series against Germany, held in Viersen and Mönchengladbach. where the United States won the bronze medal.

She competed at the 2026 FIH Hockey World Cup in Belgium and the Netherlands, where the United States finished tenth.

As of August 27, 2026, the International Hockey Federation listed Zimmer with 86 senior caps and 8 goals.