Spencer, who served as an assistant at Stanford in 2012, returns to The Farm after she turned around the Dartmouth program in just three years and earned Ivy League Coach of the Year honors in each of her final two seasons. Spencer inherited a program coming off three consecutive losing campaigns, but the Big Green won 11 games in her second year and captured an Ivy League regular season title in her third season.

In 2019, Spencer guided Dartmouth to its first Ivy title since 2011, tying Princeton for the top spot in the conference standings. The Big Green earned an at-large berth into the NCAA Tournament, a first for the program since 2013.

Along the way, Spencer's 2019 team established several program and Ivy League records. The 272 goals and 401 total points both set new program standards, while the 312 draw controls set a new Ivy standard and eclipsed the old mark by more than 50.

Spencer's second season was a resurgence for the Big Green as the team returned to the postseason for the first time since 2013 and finished the year 11-5. For her part in guiding the team back to the Ivy League Tournament and maintaining a spot in the nation's top-20 most of the season, Spencer was named the Ivy League Co-Head Coach of the Year.

In three years under her guidance in Hanover, six Dartmouth players received First Team All-Ivy honors as the Big Green finished 29-19 (.604) overall and 13-8 (.619) in conference play.