At a Metropolitan Rugby Council meeting last night, club delegates voted 8-1 to leave the round unplayed and award each team two points.
Southern will not pick up two points, as it had a bye.
The round, which was scheduled for Thursday, was called off after heavy rain left the playing fields sodden.
''No matter what we did, someone would be disadvantaged,'' Metropolitan Rugby Council chairman Gary Wheeler said, adding it was unclear what impact it would have on the competition.
Wheeler said the council had looked at other options, including extending the tournament by a week, or playing the games midweek. But neither option was attractive for the clubs. A midweek game would have put too much pressure on players, and lengthening the tournament would mean the Otago contracted players would not be available for the final.
''I think the right decision was made for the welfare of the players,'' he said.
''It is a tough competition and everybody is quite happy with the end result. We have to move on.''
Wheeler refused to say which club dissented in last night's vote.
The decision means Dunedin moves into top spot with 20 points. Southern is second with 18 points, followed by University and Harbour, which have 17 points apiece.
Kaikorai and Taieri have seven points each, Alhambra-Union has six points and Zingari-Richmond and Green Island move from one point to three apiece.