Cavanagh started her national team career in 2018, by winning gold at the 2018 Youth World Championships in Budapest, Hungary.[2] Cavanagh therefore became the first ever Canadian youth world champion.[3][4]
After not competing since 2019, Cavanagh was named to Canada's 2022 Pan American Championships team just days before the event.[5] Cavanagh would go on to lose in the semifinals to Brazil's Beatriz Soares in a unanimous decision.[6] However, Cavanagh would win the bronze medal and qualify for the 2022 IBA Women's World Boxing Championships.[6]
At the 2022 IBA Women's World Boxing Championships, Cavanagh qualified to compete in the gold medal match and guarantee herself at least a silver medal.[7][8] Cavanagh would go on to win the silver medal, losing to Turkey's Busenaz Sürmeneli after the referee stopped the contest.[9][10]
On March 4, 2024, Cavanagh announced her retirement from boxing on social media, citing her growing unhappiness in the sport as well as struggles with eating disorders as reasons for her retirement.[11]
