Graham O'Grady (Kinloch) put aside the distraction of becoming a dad for the first time overnight to lead out of the water, closely followed by Mark Bowstead (Auckland), Hamish Hammond (Greytown) and Callum Millward (Auckland), with Brown 41 seconds back in among a chase group that included Coast to Coast champion Braden Currie (Wanaka).
The ride away from Pilot Bay to Papamoa was into a light headwind and saw the field close a little, with Bowstead leading O'Grady and Millward and Brown on his own some two minutes back.
"I had a solid swim but was down two minutes but it was not as much as last year which was pleasing. I rode really well but Mike Bowstead had a great bike ride and had 2 minutes 20 on me. I have always backed my run and I caught him 14km into the run and just felt in control and felt great. I was able to ease back and win my 10th title."
The run around the base track of Mauao is always crucial to the outcome of the Port of Tauranga Half and so it proved again as Brown made up crucial ground on leader Bowstead.
"I took a lot of time out of Mark on the first lap round there so that was really pleasing and once I got out on to the road again I could see him only a minute ahead. Once I got to the turnaround it was probably 40 seconds and then I went passed him at 14km and that was the race done there."
Second-placed Bowstead, 24, is a rising star on the New Zealand triathlon scene and had a successful first year competing in the US in 2013.
He admitted his lead after the bike leg was not good enough to be able to hold Brown off on the run leg.
"He rode really well and I knew I needed more than two minutes to hold Brownie off. I stuck to my own race and was happy with my power.
"I knew what I could do and my run is a work in progress but I am pretty happy with how I went.
"The base track is hard! It seems really long the first time round and the second time round the hills seem a lot harder. I love the bike course as it is flat and fast and you can put your head down and go for it. I will definitely be back. I love this race."
The event carried NZ Long Distance Championship status, with age group spots on the line at the ITU Long Distance Championships in Weihai, China.
Full results: www.tgahalf.co.nz.