She returns to the Captains following a one-year stint as the head coach with Fox Chapel High School in 2019.

Prior to her time in the Keystone State, Hartrum played an integral role with the Captains. After joining the program as an assistant coach in August of 2015, she helped Christopher Newport reach new heights during its transition to the vaunted Capital Athletic Conference. During her first stint in Newport News, she helped the squad compile a 32-22 record, including back-to-back 11-win campaigns in 2016 and 2017.

In her first season as an assistant coach, Hartrum helped Christopher Newport climb as high as 15th in the IWLCA National Coaches Poll while leading the nation in free-position percentage. The Captains also ranked first in the CAC in scoring offense during both the 2016 and 2018 campaigns.

Along with the team's accomplishments, Hartrum also helped mentor eight All-Conference performers and six All-Region selections during her first three seasons with the program. Additionally, she helped Meaghan Galvin become the program's first-ever All-American after the former standout picked up national accolades in 2016 and 2017.

In addition to her time at Christopher Newport, Hartrum previously served as an assistant coach at Virginia Wesleyan in 2015. She also saw time as an assistant at the high school level with West Chester East in Pennsylvania and Cape Henry Collegiate in Virginia Beach. Meanwhile, she spent time as the Director of Coaching at Virginia Rush Athletics from 2013-15 and worked as the Women's Lacrosse Director at the United Sports Training Center in Downingtown, Pennsylvania from 2012-13.

Prior to joining the professional ranks, Hartrum excelled as a lacrosse player at nearby Old Dominion. From 2009-12, she starred on the attack for the Lady Monarchs and was a team captain during her final two campaigns. A three-year starter, she was the squad's second-leading scorer as a senior and paced the team in free-position goals.

A communications major with a marketing minor, Hartrum graduated with honors from ODU in 2012.