Know before you go - AdventureSmart

Auckland teenager Michael Poole surprised many to become the youngest winner of the Port of Tauranga Half Ironman in Mt Maunganui today.

The women's winner was no surprise to anyone when Whangarei's Samantha Warriner ran down Swiss leader Caroline Steffen to claim back-to-back honours in the race that doubled as the official Triathlon New Zealand Championships.

Poole, 18, had no ambitions of winning the gruelling 2km swim 90km bike and 21km run, treating the day for experience following his win over the standard distance at Whangamata last weekend.

The former Tauranga athlete found himself in contention as he ran alongside Glenbrook's James Bowstead after one lap on the run. Bowstead, in his sixth attempt at the race, was expected to prove too strong on the last tough trek around the Mount base track, but it was the younger Poole who broke clear to win in 3:56.33.

Bowstead, who turned 23 today, could not get the perfect birthday gift, settling for second in 3:58.12, following his third place last year.

Australian Tim Berkel, who stood up the leaders seven minutes off the bike, stormed home with the fastest run of 1:14.29 to climb through the field for third.

The 2008 winner Kieran Doe led out of the water and extended to a three minute lead midway through the bike but faded badly to be caught by Bowstead, who led the chase pack, before the end of the bike and later withdrew on the run.

Bowstead pushed hard on the run to shake everyone but Poole, who took the race to his more experienced opponent.

"I had no expectations here today. I just wanted to get some experience," Poole said. "I wanted to stay as comfortable as I could on the bike, start the run easy and run the last 5km hard. That's exactly what I did and somehow I won.

"I had dropped him (Bowstead) before the Mount so I knew he was hurting but I also knew he wouldn't give up so I gave it everything.

"I'm definitely not interested in racing this distance. My goal is to go on and compete in the Olympics. That's what I want to do. This race was fun but I could never consider Ironman, it was so long out there."

Australian Berkel said he was delighted with his run but would learn about giving up so much time on the leaders in the swim and bike.

"It was a great race and a really hard day with some winds on the bike and that run around the Mount. But it was a good result and one that I will learn plenty from," Berkel said.

Defending champion Duncan Milne (Taupo) withdrew on the bike after suffering from illness on the first lap.

The women's field drew the best field in the event's 21 year history, with every winner since 2002 competing.

Steffen, the Australian based Swiss star, showed her class. The first national squad swimmer and professional cyclist made the most of those skills to lead out of the water and extend away at the front of the field on the bike.

She built a 2min 40sec lead on Warriner followed by Joanna Lawn after the bike, but by the midway point the Kiwi Olympian had reduced that margin to 1min 20. It took until the final 3km undulating run around the Mount to catch the leader, with Warriner going on to win for the third time in 4L17.04, with Steffen second just 18 seconds behind.

Three time champion Rebekah Keat (Australia), early four minutes behind the leader off the bike, had a 1:22.48 run to move up to third just ahead of Lawn.

Warriner, who got married over Christmas and had a disjointed build up, said she had to work hard for the victory.

"I didn't have a good swim at all today and went as hard as I could on the bike. I knew if I could keep the gap at around two or two and a half minutes that I was pretty confident I could catch on the run," Warriner said.

"I ran really strong to catch Caroline. We know what it is like around the Mount and I used it to my advantage today. It was a hard day out there. I am so pleased to be back and I really enjoyed it. The crowd was amazing – they were just unbelievable."

Steffen, in just her second year fulltime in the sport, was disappointed but satisfied with her third placing.

"I am really happy with second. I had an awesome swim, good bike and I still struggled on the run," Steffen said. "I have to work really hard in the next few months on the run. All in all it was a good race for me and I am pretty excited about the future because I am still so young at this sport."

Also home in 18th place was world champion rower Storm Uru (Cambridge) in a respectable 4:24.37.

Results, Port of Tauranga Half Ironman

Elite Men

1. Michael Poole Auckland 3:56.33
2. James Bowstead Glenbrook 3:58.12
3. Tim Berkel Australia 3:58.40
4. Brodie Madgewick Auckland 3:59.35
5. Mark Bowstead Waiuku 4:03.34

Elite Women

1. Sam Warriner Whangarei 4:17.04
2. Caroline Steffen Switzerland 4:17.22
3. Rebekah Keat Australia 4:19.10
4. Joanna Lawn Auckland 4:21.19
5. Megan Blackett Auckland 4:24.02

Teams Overall

1. Balance Nutrition 3:45.58
2. BlyueSeventy 3:48.29
3. Team CBC 3:50.44