High school: A three-sport athlete, Harquail earned four letters apiece in cross country, track and field and swimming at Madison High School… took second place in the 2019 6A-1 Portland Interscholastic League District Track and Field Championships with a personal-best 1:57.01 in the 800m run… in the 2018 6A-1 PIL Cross Country Championships, had a PR of 15:43.6 in the 5k run… finished second in the 5k at the Nike Portland XC Invite… took second place in the 3k run at the Night Meet… ran a personal-best 9:08.34 in the 3k run at the 2018 6A-1 PIL District Track and Field Championship… reached two indoor personal records at the UW High School Invitational (1600m – 4:54.93, 3k – 9:43.63).
Personal: Gus Harquail was a member of the Portland Aquatic Club in high school… he was also the co-student body president at Madison High.