Bossert was a regular on the European Tour, the Sunshine Tour and the Challenge Tour with the main highlight of his career coming at his sole European Tour victory in 1995 at the Air France Cannes Open becoming the first Swiss winner on the European Tour.
He was also victorious on the Challenge Tour, winning at the Neuchâtel Open in 1990 and the Kenya Open in 1992. Bossert has one Senior title to his name winning the Travis Perkins Masters in 2016.
|European Tour wins||1|
|Challenge Tour wins||2|
|Senior Tour wins||1|