He was a member of the United States men's national artistic gymnastics team and won a silver medal at the 1991 Pan American Games.

[2] While in high school, he decided to switch gyms to Massachusetts' Stony Hill Gymnastics Club under coach Mike McCarthy.

[2] Warburton attended Goffstown High School for his freshman and sophomore years before transferring to Wilbraham & Monson Academy and graduating in 1986.

[4] At the 1988 U.S. National Gymnastics Championships, Warburton finished first all-around for the 1992 Olympic candidate grouping and was named to the United States senior elite development team.

[7] Warburton placed sixth in the all-around at the 1990 U.S. National Gymnastics Championships with third-place finishes on the pommel horse and still rings.