Background
Dennis was born, raised, and resides in Adelaide, South Australia, Australia.
Dennis was born, raised, and resides in Adelaide, South Australia, Australia.
In 2014, Dennis finished second overall behind Bradley Wiggins at the Tour of California, after placing second to Wiggins in the time trial.
Dennis began his career by focusing on the track, and was part of the Australian team that took the silver medals in the team pursuit at the 2012 Olympic Games. He joined Garmin-Sharp-Barracuda for the 2013 season, and made his debut Tour de France, pulling out of the race before Stage 9. He also placed second in the time trial behind Alex Dowsett.
In August 2014 Dennis made a rare mid-season transfer to the Business Service Management Racing Team.
On 8 February 2015, he set a new hour record of 52.491 km, beating Matthias Brändle"s record by over 600 metres. The record stood until 2 May 2015, when it was broken by British rider Alex Dowsett.
Dennis was selected to ride the 2015 Tour de France as part of the Business Service Management Racing Team squad supporting Tejay van Garderen. With this performance, he established a new record average speed for an individual time trial at the Tour de France.
