KEY POINTS:
Top seed Dan King-Turner has had a fortuitous start to the New Zealand Residentials where he is the defending champion.
His first match was a walkover, as was his second round match after his opponent was called away to a family emergency.
So the 22-year-old, who had just been told of his entry into the Heineken Open main draw, found himself in the third round without hitting a ball in anger.
He then struck the powerful unseeded Auckland teenager, Martin Colenbrander.
King-Turner raced through the first set but then dropped the second in a tie break as Colenbrander attacked at every opportunity.
King-Turner was also trailing on serve in the final set but managed to come through with a 6-3 win, avoiding what would have been an embarrassing defeat so early in the tournament.
He now plays eighth seed Eru Lyndon of Wellington in the quarters.
Second men's seed Michael Venus is also in the last eight after beating former Chinese player Wei Wei. Venus now plays fifth seed Matt Prentice.
Third seed Adam Thompson beat Kiril Tcherveniachki in straight sets to set up a replay of the Auckland champs final against Robbie Cheyne while Andrew Allan put in another good performance to beat Austen Childs and will face Wellington's Pat Metham.
The women's quarters are fairly straightforward with top seed Shona Lee cruising in her matches so far.
She plays sixth seed Abigail Guthrie of Auckland in her next match.
Third seed Kairangi Vano faces seventh seed Amelia Harris of the Hutt Valley while Dianne Hollands, the tournament fourth seed, plays Tanya Samodelok, the pint-sized Russian-born player who is just 12 years old and a real prospect for the future.