Wanganui goal scorers against Waikato were Jessica Brougham and Emma Rainey.
"That loss against Waikato meant we were in a must-win or draw situation against Hawkes Bay," Watkin said.
Unfortunately, the Wanganui girls went down 1-0 to the Bay.
Coach Haley Mallinder said it was a tight game and while the Wanganui girls had chances they simply could not convert them into points.
"We just couldn't hold on to the ball and that was the difference really," Mallinder said.
"The girls are very disappointed they could not make the top eight to give them the opportunity to better our fourth place in this competition last season. We still have a full roster of matches coming up, but we will be playing off for ninth to 16th now."