Tasman have consolidated their spot in the NPC premiership play-offs with a 21-14 win over North Harbour at Lansdowne Park in Blenheim.
Third-placed Harbour salvaged a bonus point from the match, but are still three points behind second-placed Taranaki, who have a game in hand.
Tasman are still fourth, but sit eight points clear of fifth-placed Auckland with two games to play.
Lack of discipline and errors proved costly for Harbour from the first whistle, as they conceded a series of penalties that culminated in a penalty try after just five minutes.
Harbour couldn't seem to do anything right, and the turnovers mounted rapidly. Restarts went out on the full, touch-finders didn't find touch, lineouts couldn't find their mark, and too many tackles were missed.