The 4 teams at the top of the CSAA standings are still in the tourney but the bottom tier all ended their season on Wednesday in D3 postseason play.
Montague eliminated Newaygo, Oakridge defeated Grant ,Ravenna took out Kent City and Hart outscored Reed City.
Tri County (9-4) trounced Orchard View and will move on to face Ravenna (2-8) on Tuesday at the Oakridge field.
Big Rapids drew a bye and will host the Pirates of Hart (4-9-2) also on Tuesday.
In D2 Fremont is on the road Thursday to face Ludington.
In D4 play Lakeview (5-6) slipped by Pentwater and will play the winner of BR Crossroads and North Muskegon.
Montague 3 Newaygo 2
Oakridge 2 Grant 0
Tri County 9 OV 1
Ravenna 4 Kent City 1
Lakeview 3 Pentwater 2
Hart 5 Reed City 2