Beginning with the 2020-21 school year, the IHSA will implement new state series format that will conduct all classes of  girls basketball one weekend instead of two.  In making this change, the IHSA Board of Directors will review the new format prior to the 2022-23 school year, and once future state series dates are announced, this page will be updated accordingly.

Girls Basketball (Class 1A-4A) 2020-21 2021-22 2022-23
Season Starts (Mon. Week 18) See COVID-19 resource page for dates and info. Nov. 1 Oct. 31
1st Contest May be Held on (Mon. Week 20) Nov. 15 Nov. 14
On-Line Season Summary Form Deadline (Wed. 10:00 a.m. Week 31) Feb. 2 Feb. 1
On-Line Team Seeding Deadline (Thurs. 12 Noon Week 31) Feb. 3 Feb. 2
Regional Quarterfinals (Sat. Week 32) Feb. 12 Feb. 11
Regional Semifinals (Mon.-Tues. Week 33) Feb. 14-15 Feb. 13-14
Regional Finals (Thurs. or Fri. Week 33) Feb. 17 or 18 Feb. 16 or 17
Sectional Semifinals (Tues. Week 34) Feb. 22 Feb. 21
Sectional Finals (Thurs. Week 34) Feb. 24 Feb. 23
Super-Sectionals (Mon. Week 35) Feb. 28 Feb. 27
State Final (Thurs.-Sat. Week 35) Mar. 3-5 Mar. 2-4
Girls 3-Pt. Showdown (Thurs.-Sat. Week 35) Mar. 3-5 Mar. 2-4
Season Ends (Sat. Week 37) Mar. 19 Mar. 18