Sean began riding in 1979 and racing in 1981 as a 15 year old junior, turning professional in 1985 and racing domestically in the United States. He has been coaching since 1992 and is a level 1 USACycling coach with distinction. He has served in various capacities in the sport over the years at local, regional and national levels. He is currently the founder and director of GS andiamo Junior Development Cycling Program and team california juniors as well as teh youth cycling association. He is an Associate Professor of Physiology and Pharmacology at Loma Linda University School of Medicine where he teaches and performs cardiovascular and respiratory physiology research. As his cycling and academic background suggests, his coaching techniques are derived from blending intimate knowledge of basic physiological principles with real-world experience.