A-D-M blanked Indianola 3-0 on Tuesday to close out the regular season with a 10-6 mark, having won seven of their final eight matches.
Nikki Corkrean, Lauren Hofmann and Caroline Maher all scored goals for the Tigers, who will square off in a regional match May 28 at home against either Chariton or Norwalk.
Megan Burditt and Lauren Hofmann recorded hat tricks as A-D-M blanked Ballard 7-0 on May 17.
Kelsey Hofmann added a goal and two assists, and Mallory Scultze nabbed 10 saves in goal.
The Tigers closed out the conference slate with a 7-1 mark. Of their seven RRC victories this season, five came via shutout.