Balmacewen men continued on its winning way with a whitewash of a depleted Mornington Roslyn Privateers in Dunedin club tennis on Tuesday night.
Closest rivals St Clair and Eastern Harbour kept in touch with contrasting wins.
Harbour beat Taieri 6-0 while St Clair needed a sets countback to beat Mornington Roslyn Privateers.
In the only women's tie played, St Clair won both singles but surprisingly lost the doubles against Balmacewen.
It remains a clear leader in the competition.
Conrad Wong and Hee Bum Chung took the top order for Balmacewen in straight sets and the lower order was won by default.
Taieri's only resistance came when Andrew Mitchell pushed Alan de Zwart to 6-7 4-6.
Newcomer Campbell Higgins, a student from Tauranga, was impressive for Harbour, dropping only two games in singles and doubles.
The St Clair win by three sets was set up after it won three singles in straight sets.
Jeff Elliotte beat higher ranked Dwayne Cleugh 7-6 7-5 and Darryl Paterson was too consistent for promising junior Oliver Reid, taking a 6-1 6-3 result.
The sole success for Mornington Roslyn went to North Otago representative Nick Dalziel, who beat Mayuresh Prasad 6-2 in the third set.
Mornington Roslyn won both doubles in third set tiebreaks but it was not enough to tip the balance.
Sian English (St Clair) beat Brittany Wong 7-6 6-3 and Lauren Fowler needed a third-set tiebreak to beat Alice Bourne, but the Balmacewen pair struck back with a 6-4 6-4 doubles win.
