Janet reached the top of the national scene in 2009 and won the Barrientos Memorial with a throw of 73.17 m. A personal best of 74.95 m preceded his first major win at the 2009 Central American and Caribbean Championships in Athletics, where he beat Cuban rival Noleysi Bicet. He won again at the Barriento Memorial in 2010 and a clearance of 75.98 m, continuing his upward trajectory. His second international title came at the 2010 Ibero-American Championships in Athletics as he broke Juan Ignacio Cerra's six-year dominance of the competition. He was chosen to represent the Americas at the 2010 IAAF Continental Cup and finished in fifth place overall.