Maslin-Kammerdeiner attended George Mason University and played for the Patriots, first as a field player for two seasons, and later as a goaltender, leading the Patriots to a big upset in the NCAA Division 1 championship game over the North Carolina Tar Heels in 1985.

[3] Maslin-Kammerdeiner parlayed her NCAA title success into a tryout for the US National Team, then coached by Anson Dorrance, who was head coach at North Carolina, the team Maslin's GMU Patriots had beaten in the 1985 Championship.

She was selected to, and played for the United States women's national soccer team from 1988 to 1991, with 17 National Team appearances (caps) in that time frame, recording nine shutouts, including her first 843 minutes of her international career without allowing a goal – a record that still stands.

She became the back-up goaltender on the US team that won the first Women's World Cup in China.

[4] She retired from competition after the 1991 World Cup, and later became a school teacher and soccer coach in Virginia.