Forbes won the
2019 Wimbledon girls' doubles title with
Savannah Broadus, joining three other Americans in the finals of the junior tournaments. On August 10, 2019, she and
Alexa Noel won the
USTA Girls 18s National Championships in doubles, earning them a wild-card entry into the main draw of the
2019 US Open. Forbes has a career-high
ITF junior combined ranking of No. 16 achieved on October 14, 2019. She began attending
UCLA for the fall 2019 semester. After graduation, she enrolled in the
UNC Kenan–Flagler Business School and joined the
North Carolina Tar Heels tennis team. She won a national team title in her first season at North Carolina in
2023. ==Junior Grand Slam titles==