However, on the women's side last year's women's champion, Emma Johns (Otago), had a 6-4, 6-0 loss to Canterbuy junior Beth Williamson.
Hector Garcia, a Mexican coach working in Timaru, won his first round without losing a game. The top seed then beat Stephen Hollands (Otago) 6-2, 6-2 in a more intense quarterfinal.
Second seed Vaughan Kingi (Canterbury) also won two easy straight-set matches.
Taranaki representative Jono Ussher was pushed hard at the quarterfinal stage by Julian Main (Canterbury) but held on when play was moved indoors for a 6-2, 7-6 win .
New Zealand junior representative Harry James (Queenstown) was too solid for Tim Breitbarth (Otago), winning 6-4, 6-0, and will meet Garcia in the semifinal today.
Williamson will meet No 1 seed Libby Scott (Otago) in today's final.
Scott earlier beat Brittany Wong (Otago), after Wong was too steady for third seed Jessie Watson (Otago), winning 6-2, 6-3.
