A 10km race is also being held around the Gimblett Gravels vineyards district starting at 7.45am, and a half-marathon starts at 8am at Pakowhai Regional Park, beside the Ngaruroro River just north of Hastings, and a 3km children's run will be held at the winery, starting at midday.
At a function addressed by both mayors, the twin-city spirit and the contribution of those at the top was applauded by event manager Dave Beeche, the former Triathlon NZ CEO who was also director of the FIFA Under 20 World Cup soccer tournament in New Zealand last year.
"To have leadership like that is really what make cities great, and that's what will distinguish Hawke's Bay from other cities," he said, amid comment on the promotion and organisation which has seen entries easily surpass expectations.
"It's what makes it such a pleasure to work in," he said.
"We deliver events all around New Zealand, and now all around Australia. This has been an absolute pleasure to work in, in terms of getting stuff done."
He said there were many places where it was "not easy getting stuff done", but Hawke's Bay had excelled with its attention to detail including beautifying of the course and graffiti, the local body involvement and the partnerships with the race and sponsors.
One thing he appreciated the powers that be could not manage was the weather, and with an overnight forecast of winds up to 120km/h south of Hastings, Mr Beeche was anticipating some "organisational challenges" but expected a brilliantly fine day.