The Swiss rider twice stood on on the podium of one of the Grand Tour events.

He also won his home country's one-day classic.

Dufaux was 2nd in the 1996 Vuelta a Espana behind Alex Zulle of Switzerland.

Dufaux was also 3rd in the 1997 Vuelta behind Alex Zulle of Switzerland and Fernando Escartin of Spain.

In addition, Dufaux won the Championship of Zurich in 2000.