During his years of junior eligibility, Beighton was active as a skip. He won the national junior championship in 2010, which gave him the opportunity to represent the United States at the 2010 World Junior Curling Championships, where he finished in ninth place with a 1–8 win-loss record. Beighton also skipped a team which included former national university champion Blake Morton at the qualifying tournament for the 2013 Winter University Games, but finished third.