It's the 27-year-old's second extreme win of the year, following his victory in the Great Falls Race in the United States in July, while he also finished third in the Ekstrem Sport Veko in Norway in late June, which Sutton won.
But he's also made plenty of headway in the Olympic slalom discipline, picking up his best-ever world cup result - an eighth - in Slovenia.
Following the Great Falls win, Dawson spent a month slalom training on Deep Creek in Maryland, the site of the world championships from September 17-21, and he is also heading back there this week to continue his buildup.
Sutton, meanwhile, beat another Czech paddler, Viktor Legat, in the race off for third and fourth in Lipno and will now turn his attention to reclaiming the adidas Sickline extreme world championship title in Austria next month, an event he has won three times previously.