Alvaro began his junior career in his home of Colombia. He was ranked as high as 60 in the world on the ATP Tour and competed in all of the Grand Slam events except the Australian Open. Betancur has notable wins against; Jose Higueras, Nick Saviano, Billy Martin, and Jaime Fillol. He represented Colombia 's Davis Cup Team for 9 years and served as captain for 2 years. He came to Saddlebrook in 1986 and is known to juniors and top touring pros alike as one of the best technical coaches in the business. His intensity and dedication to junior tennis is an integral part of the program and is instrumental to the development of Saddlebrook Academy players.