The 2019 National Invitational Softball Championship (NISC) began on May 16, 2019 and concluded on May 26.
[2] For the inaugural tournament, only fifteen of the thirty-two NCAA conferences sent an automatic qualifier (AQ).
Seven schools having non-losing records and RPIs in the top 100 entered the tournament with "National RPI" bids.
The regional and finals competitions were double-elimination tournaments.
The third annual National Invitational Softball Championship finals were played May 24–26, 2018 at TC Colorado Field in Fort Collins, Colorado.