She would then score 24 points in 33 games during the 2019–20 season, including the game-winning goal to send Harvard to the ECAC Hockey semifinals for the first time since 2015.

[11] Gilmore signed her first professional contract with the Boston Pride ahead of the 2022–23 PHF season.

[12][13] Her first PHF goal was scored off a wrist shot against Toronto Six goaltender Elaine Chuli on November 26, 2022.

[15] As a member of the US national under-18 ice hockey team, Gilmore participated in the IIHF Women's U18 World Championships in 2014, 2015, and 2016, scoring a total of 19 points in 15 games and winning gold twice and silver once.

[18][19] As of 2021[update], she ranks seventh on the list of all-time career points scored by an American in the IIHF U18 Women's World Championship.