Tasman made it six wins out of six in the ITM Cup so far this season as they defeated Championship side North Harbour 39-20 in Nelson on Wednesday.
A second-string line-up did not stop the Makos from picking up a bonus-point victory as right wing Viliami Lolohea starred with a well-taken hat-trick of tries.
Jimmy Cowan, Marty Banks and Mitchell Scott were Tasman's other scorers, with Nafi Tuitavake and Michael Little responding for a brave North Harbour.
North Harbour were very much in the contest at half-time as they went in at Trafalgar Park just one point behind at 14-13 after a positive 40 minutes.
But the Premiership league leaders ran away with things in the second stanza as Lolohea, Banks and Scott crossed the line to put the result beyond doubt.
Tries: Cowan, Lolohea 3, Banks, Scott
Cons: Renata 2, Banks
For North Harbour:
Tries: Tuitavake, Little
Cons: Halangahu, McGahan
Pens: Halangahu 2
Tasman: 15 David Havili, 14 Viliami Lolohea, 13 Kieron Fonotia, 12 Alex Nankivell, 11 Mitchell Scott, 10 Trent Renata, 9 Jimmy Cowan, 8 Vernon Fredericks, 7 Shane Christie (c), 6 Marco Kotze, 5 Joe Wheeler, 4 Alex Ainley, 3 Ross Geldenhuys, 2 Quentin MacDonald 1 Tim Perry.
Replacements: 16 Jesse MacDonald, 17 Siua Halanukonuka, 18 Jake Stafford-Wood, 19 Tevita Koloamatangi, 20 Liam Squire, 21 Billy Guyton, 22 Marty Banks, 23 Robbie Malneek.
North Harbour: 15 Matt McGahan, 14 Nafi Tuitavake, 13 Matt Vaega, 12 Michael Little, 11 Tevita Li, 10 Daniel Halangahu, 9 Bryn Hall (c), 8 Jordan Manihera, 7 James Doyle, 6 Christopher Vui, 5 Hayden Triggs, 4 Gerard Tuioti-Mariner, 3 Sione Mafileo, 2 James Parsons, 1 Nic Mayhew.
Replacements: 16 Ray Niuia, 17 Adrian Smith, 18 Alex Woonton, 19 Dillon Wihongi, 20 Hapakuki Moala-Liavaa, 21 David Bason, 22 Josh Rowland, 23 Junior Va'a Tofa.
Referee: Shuhei Kubo (Japan)