After finishing second overall of the Tour of Norway, Boasson Hagen picked up his first win in two years at the Tour des Fjords, on the last stage of the race. He outsprinted a small leading group of four riders to accomplish the feat. In June, Boasson Hagen won the Norwegian National Time Trial Championships and the Norwegian National Road Race Championships after jumping from the chasing group to join the lead group in the final kilometer. He won the title in a close sprint. In the final kilometers of the UCI Road World Championships, Boasson Hagen refused to cooperate with Greg van Avermaet to close the 10-second gap to later winner Peter Sagan. The most likely reason for Boasson Hagen not to put an effort in the chase was his fellow countryman and sprinter Alexander Kristoff who was in the main peloton just seconds behind the duo. Boasson Hagen eventually finished 20th, just 3 seconds behind the winner.