Teams defaulting three games consecutively or four games in a season are deemed to be out of the competition, and things did not look like they would get any better this season for Portland.
Portland coach Craig Bird noted his side had been touch-and-go on numbers since the season began.
In the letter to the WCDRL board, Portland stated that while their senior team would not participate this season, their junior grades would still compete.
Board chairwoman Juanita Hool said the club would rebuild as they have done before. "The board have every confidence they will return to senior football again in the near future," Hool said.
She added the board could appreciate that it was a big decision for Portland and Bird to withdraw the senior team.
"In making that decision it had at least given the competition certainty for them and the rest of the teams moving forward. It obviously had a huge impact on every other club that remained in the competition, so there was the need to revise the draw. It meant that where a club would have previously had a bye each weekend, we now had an even number of teams in the competition and had already completed four rounds."