The Wanganui tournament will start at noon on Saturday for the men and 1pm for the women's draw, which could see those semifinals possibly held that day due to the smaller field.
Older club members Patrice Mathey and Ivan Southon are the No2 and Noseeds respectively after Butters. Mathey was a winner in the B Grade of the club's doubles championships on March 3.
In the women's draw, Helen Russel's status as the defending champion saw her given the No1 seeding ahead of Kyle Butter's sister Paris.
Russel was a runner-up in the A Grade of the doubles championships, while Paris Butters will also be a vital part of the WHS mixed team going to Auckland.
Her mother, Tara Butters, will be No3 seed.