Tasman have extended Southland's winless run in the national provincial championship with a comprehensive 50-17 cross-over win at Trafalgar Park in Nelson.
It was always going to be a mismatch, with Tasman sitting fourth on the premiership table while Southland are mired at the bottom of the championship after seven matches without a win.
Tasman were all business from the outset, running in eight tries to three.
Off the back of a solid set piece, they pressured Southland into a stream of handling errors and turnovers, capitalising with five first-half tries.
Flanker Pete Samu set the ball rolling after just over 60 seconds, with wingers Viliami Lolohea and James Lowe following in rapid succession as Tasman opened out a 21-0 lead after 13 minutes.