In a selector series first, teams will be mixed with different combinations, to give selectors an idea of players' compatibility and versatility.
New Zealand Curling Association secretary Peter Becker said curlers were coming from throughout the country, and one from Australia, to compete for places on six national men's and women's teams.
The teams will be announced following the national championships in early August.
New Zealand is hosting the 2008 Pacific championships in Naseby at the indoor curling rink from the November 1-9, and Dunedin will host the world senior championships for over 50s from April 24-May3, 2009.
The major events in the south had resulted in an increase in curlers seeking to achieve national honours, Mr Becker said.
