Though a talented golfer, Doyle elected not to turn pro after graduating from Vermont's Norwich University.

[3][4] During his time at Norwich he finished runner-up at the Massachusetts Amateur, losing to Peter Drooker, 1 up, in the finals.

From 1996 to 1998 Doyle competed in 58 PGA Tour events, making the cut in 31, including two top-10 finishes.

[12] As a philanthropist, Doyle has donated over $1,000,000 to various charities including family members of slain rescuers of the 9/11 attacks.

[13][14][15] Nike Tour playoff record (2–0) *Note: Tournament shortened to 36 holes due to weather.