Leaderboards will be updated twice daily, finalists combining points from the North Island runs with those in the championships' runoffs to decide who gets each of the four coveted green ties which symbolise winning a New Zealand title.
Much interest will centre on whether the North Island can complete a cleansweep of island and national titles this season, the South Island championships near Balclutha earlier this month having seen two titles go to the Poverty Bay centre, one to Hawke's Bay, and one to Southern Hawke's Bay-Wairarapa.
The short head title was won by Dannevirke trialist David Sheild with Clyde, the short head and yard by Poverty Bay legend Merv Utting and Fern, prolific-winning Te Pohue farm Stuart McNeill claimed zig zag honours with Ranger, and Allen Irwin, of Whatatutu, won the straight hunt title with Chase.
Utting, who has won six national titles, 11 North or South island titles and who was last year bestowed an MNZM for services to sheep dog trialing, has the maximum five dogs entered, as does McNeill, who has three national titles and four at island championships to his name.
Winners at the 2016 New Zealand Championships at Omarama, North Otago, were Northland farmer Murray Child and Dice in the long head, host club patron Ginger Anderson with Don in the short head and yard, King Country's Hamish Parkinson, with Shake, in the zig zag, and Tim Stevenson, of Taihape, with Cruze in the straight hunt.
The first North and South island championships were held more than a century ago, the first New Zealand championships were held in 1936.
Whangara has had its moments in the spotlight, being the location for much of the movie Whale Rider, and a few days apart earlier this year with two major victories for the locals - Maryanne Baty's victory with Gisborne's Joel Henare in the World Woolhandling Championships teams event in Invercargill and kapa group Whangara Mai Tawhiti taking the top honours at biennial Maori performing arts festival Te Matatini in Hastings.