"Now it is time to move forward. Ironman has always been on my bucket list. It's the cornerstone of our sport and really where it all started.
"I've tried my hand at Ironman 70.3 this year with success and now I am going to begin this part of my career with the same passion and professionalism that I have since I began as a teenager.
"It could not be more fitting to begin this right here in Auckland. It was incredible to compete in front of all the crowds in downtown Auckland in the ITU World Cup final and so to return here in January for this super-exciting race based here in the Viaduct and to bike over the Harbour Bridge is incredible.
"The course includes the Auckland waterfront where Ironman first began in this country so I fully respect those great names in our sport that have competed there before me."
Docherty said he is both daunted and excited to move up to the full Ironman distance (3.8km swim,180km bike, 42.2km run) on March 2 in Taupo.
"My ultimate aim is to compete and win in the Ironman World championship in Hawaii. That is the Holy Grail of the sport.
"I am not getting ahead of myself though. Now I have to prepare for Ironman 70.3 Auckland in January and then put in a lot of hard work for Taupo. I am so excited to be able to make my Ironman debut in my hometown with my family and friend there."
- nzherald.co.nz