Hollaus quickly dominated the 125cc class by winning the first four Grand Prix races, namely the IOM, Ulster, Dutch, and German.
At the Italian Grand Prix, Hollaus appeared to be putting together another win. He quickly posted a new record lap speed of 149.9 km/h during the final practice at the Monza track when tragedy struck. His team mates Muller and Haas witness Hollaus crashing in the perilous Lesmo curves. Despite immediate assistance, Rupert Hollaus passes away tragically becoming the first posthumous Grand Prix motorcycle champion and Austria's only motorcycle road racing champion.
4 September 1931-11 September 1954