Dyer grew up in Acton, Massachusetts and was a figure skater for the younger years of her life before taking up ice hockey. On why she became a goaltender, “I grew up in a neighborhood with boys who liked to play hockey. They stuck me in goal and shot things at me,” she says. “And I liked it.” Dyer went on the play with the boys during high school, and was on the same team with players such as Tom Barrasso, Jeff Norton, and Bob Sweeney.
Dyer enrolled at Northeastern where she became a backstop for a Northeastern team that won back-to-back ECAC championships, the defacto National Championship at the time as there was no NCAA tournament yet. Dyer had a career 2.04 goals against average and was the team MVP her final two seasons and posted a record of 48-3-1.
Dyer was a four-time member of the United States women's national ice hockey team in 1990, 1991, 1994, and 1995, amassing three World Championship silver medals.
Dyer retired from ice hockey in 1996 when she became a product manager for Louisville Hockey.