In March 2021, Barrett claimed one of three available quota places for the 2020 Summer Olympics in the women's individual recurve at the 2021 Pan American Archery Championships in Monterrey, Mexico, where she won silver. Barrett was officially nominated to the team on May 12, 2021. A week later at the World Cup stop in Lausanne, Switzerland, Barrett scored a 652 in the qualification round, the highest ever by a Canadian woman in an international competition. Barrett competed in women's individual archery at the Olympics in July 2021. At the qualifiers, she ranked #46 out of 64 with a score of 630; she and Crispin Duenas did not have a high enough combined score to qualify for the mixed team event. She lost her individual match with Yasemin Anagoz 6–2.