Career Competing in two Winter Olympics, Kienast earned his best finish of sixth in the four-man event at Calgary in 1988.
Achievements He won a silver medal in the four-man event at the 1986 FIBT World Championships in Königssee. In the 1987-1988 Bobsleigh World Cup, he tied for overall champion in the four-man event with fellow Austrian Ingo Appelt.