[2] Valmon won the silver medal at the World Indoor Athletics Championships in 1991 in Seville.

In 1992 he won a gold medal with the American 4 × 400 m relay team at the Olympic Games in Barcelona.

During his tenure as head coach, 50+ student-athletes have earned All-American honors for their athletic performances.

Maryland track and field athletes consistently rank among the top of their peers with the cross country program earning the school's award for the highest team GPA three years in a row, in 2013, 2014, and 2015.

[6] Valmon named United States Head Track and Field coach on February 11, 2011.