From the IHSAA
A new format has been passed by the IHSAA for the softball state tournament that eliminates the Friday state semifinal games and replaces it with a semistate round on the prior Saturday, beginning in the 2009-10 school year.
The start of sectionals (May 24-29, 2010) will remain the same in the new format, but a one-game regional on Tuesday (June 1, 2010) would be followed by a four-team semistate on Saturday (June 5, 2010), with four state championship games one week later (June 12, 2010).
The previous format allowed 64 sectional champions to advance to four-team regionals on Saturday, with those 16 winners moving to the Friday state semifinals followed by the four state championship games the next day.