Born and raised in Montreal, Quebec, Plourde's initial main sporting interests were in skiing and soccer.[2] She started to train seriously in athletics in 2018.[3]
On June 29, 2023, She set a Quebec provincial record as she ran a personal best over 1500m at La Classique d’athlétisme de Montréal. She turned professional in July of 2023, joining the Nike Union Athletics Club based in Portland, Oregon. Making her Union Athletics Club debut at the Harry Jerome Classic, she set another personal best and Quebec record of 4:06.47 [6] She finished second in the 1500 m at the Canadian Track and Field Championships in July 2023.[7] She was selected for the 2023 World Athletics Championships in Budapest in August 2023 where she finished tenth in her heat.[8][9]
In February 2024, she ran a huge personal best in the Wanamaker Mile at the Millrose Games in New York, recording 4:24.67, an improvement of more than 17 seconds. This placed her third all-time among Canadian women, behind only Gabriela DeBues-Stafford and her sister, Lucia Stafford.[9] She was selected for the 2024 World Athletics Indoor Championships in Glasgow as part of the Canadian team, to compete in the 1500 metres, where she was eliminated in the heats.[10] She competed in the 1500 metres at the 2024 Summer Olympics in Paris in August 2024.[11]