Anne, Quebec, Canada, he won the bronze medal in giant slalom, and he finished the 2007 season in fourth place in the overall Europa Cup standings.

On the weekend of 4–6 December, 2009, Janka achieved a remarkable feat by winning the super-combined, downhill, and giant slalom on the challenging Birds of Prey course at Beaver Creek, Colorado.

On 16 January 2010, Janka won the Lauberhorn downhill in Wengen, the longest and fastest race on the World Cup tour, a day after nearly repeating his 2009 win in the super-combined by narrowly placing second behind Bode Miller.

He clinched the title by winning the downhill and giant slalom, which left his nearest opponent, Benjamin Raich, 106 points back with one race remaining, an insurmountable margin.

Following the 2011 World Championships, Janka had some health problems but recovered well and resumed training five days later,[4] winning the giant slalom at Kranjska Gora, Slovenia, on 5 March for his sole victory of the 2011 season.