Born in Kingston, Ontario, Agnew began playing soccer at age four.[3] Her family moved to Syracuse, New York in 2001, and moved again to Columbus, Ohio in 2006.[4] She attended Dublin Jerome High School in Dublin, Ohio where she played on the varsity soccer team all four years of her high school career. She also played basketball.[2] After helping the team reach the state finals during her junior year, Agnew was named to first team All-Ohio and ESPNHS second team All-American.[2]
Agnew played club soccer for Ohio Premier for five years and helped the team win the U-18 ECNL national championship in 2013.[2]
In January 2018, Agnew was traded to the Houston Dash in exchange for the third overall pick of the 2018 NWSL College Draft.[5] She was waived by the Dash on January 22, 2020.[6][7]
Agnew was named as a non-roster invitee on the preseason roster of the North Carolina Courage of the NWSL on March 9, 2020.[9] On June 19, 2020, Agnew signed a one-year contract, with a one-year option to extend, with the Courage.[6] Upon conclusion of the 2020 NWSL Challenge Cup, Agnew would be loaned to Damallsvenskan club KIF Örebro DFF for the remainder of the season.[10]
Retirement
On March 11, 2022, Agnew announced her retirement from professional soccer.[11]