Class 1A top-ranked Alta and Storm Lake St. Mary's will meet in the first round of the postseason, their third matchup of the season.
The boys basketball pairings were released Tuesday afternoon by the IHSAA.
The Cyclones and Panthers face each other Thursday, Feb. 14 in a 1A District 4 opener at 6:30 p.m. at Laurens-Marathon.
The winner plays Laurens-Marathon or Newell-Fonda Feb. 19 at L-M. The district final is set for Feb. 21 at 7 p.m. at Buena Vista University's Siebens Fieldhouse.
The District 4 and District 3 winners face off in substate Saturday, Feb. 23 at Spencer at 7 p.m.
Class 1A No. 8 George-Little Rock is the top seed in District 3 and the only ranked team in that district. Alta is the lone rated team in its district as well.
In 1A District 2, Aurelia plays at Woodbury Central in the first round Feb. 14 at 8 p.m. The winner of that game plays River Valley or Whiting on Feb. 19.
Galva-Holstein plays Boyer Valley or West Harrison Feb. 14 at 6:30 p.m. at Woodbine. Substate for District 1 and District 2 teams is Monday, Feb. 25 at the Tyson Events Center in Sioux City at 6:30 p.m.
Currently there are no ranked teams in District 2, while District 1 has No. 4 Rock Valley and No. 9 Lawton-Bronson.
In Class 2A District 2, Sioux Central opens against Hinton Feb. 11 at 6:30 p.m. at Orange City Unity Christian. The winner plays Unity Christian or West Sioux Feb. 14 at 7 p.m. at Unity Christian. The district final is at Sioux City North Tuesday, Feb. 19 at 7 p.m.
Champs from District 1 and District 2 meet up for substate Feb. 25 at Tyson Events Center at 8 p.m.
Class 2A No. 7 Hull Western Christian (of District 1) is the only ranked team in that substate.