A product of Seekonk High School, Chakouian was a junior national champion in both the shot put and discus in 2001, as well as being elected team captain of the USA vs. Great Britain Junior World Tour. In 2006, Chakouian placed 5th at the USATF Outdoor Championships, as his throw was the 17th farthest throw in the world for the year.

Chakouian has competed in numerous international competitions, finishing in 5th place at the Jr. World Championships (Santiago, Chile) in 2000, placing 1st at the Jr. Pan Am Games (Sante Fe, Argentina) in 2001, while being ranked no. 6 all-time on the Jr. World Shot Put List.