Forrest competed in the 2015 World Cup Singles, where she won a silver medal after losing out to Siti Zalina Ahmad in the final, the event is the southern hemisphere equivalent of the World Indoor title.

[2][16] In 2022, Forrest won the women's singles at the inaugural World Bowls Indoor Championships, defeating Gloria Ha in the final.

[19] At the 2025 World Indoor Bowls Championship, she won her third ladies' singles title, defeating Beth Riva in the final.

[20][21] Forrest is a member of the Teviotdale Indoor Bowls Club in the Scottish Borders.

[2] She is also an Honorary Life Member of the Scottish Indoor Bowling Association (SIBA).