Matthias Hirsch is a former Swiss slalom canoeist who competed in the 1970s. Matthias Hirsch is a former Swiss slalom canoeist who competed in the 1970s. <unk> <unk> <unk> <unk>
1977 ICF Canoe Slalom World Championships in Spittal.<unk>1977 ICF Canoe Slalom World Championships in Spittal.<unk>1977 ICF Canoe Slalom World Championships in Spittal.<unk>