INDIANAPOLIS -- Florida, the defending national champion, was named the No. 1 seed in the NCAA Division I Softball Championship on Sunday when the NCAA Division I Softball Committee announced the 64-team field. The Gators will play Florida A&M, an automatic qualifier from the Mid-Eastern Athletic Conference.

Thirty-two conferences were awarded an automatic qualification, while the remaining 32 slots were filled with at-large selections to complete the bracket. The top 16 teams were seeded nationally and will play at campus sites this weekend.

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Team pairings were determined by geographic proximity, with the exception that teams from the same conference were not paired during regional competition.

The Southeastern Conference (SEC) led all leagues with 11 teams selected to the championship tournament. The Pac-12 Conference and Atlantic Coast Conference each placed seven teams in the championship tournament, respectively. Seven teams are making their first appearance in the tournament: Binghamton, Central Arkansas, Fairfield, Indiana State, Pittsburgh, St. John’s (N.Y.) and Weber State.

Only 12 schools have been crowned the NCAA Division I softball champion since the tournament started in 1982, and 11 will compete in this year’s bracket.

The championship will be three weekends of competition. Four teams will participate at each of 16 campus sites in a double-elimination tournament.

The committee held selections for the 2015 NCAA Division I Softball Championship May 8-10. The 64-team field was selected from 295 NCAA Division I institutions sponsoring softball. Of the 64 teams, 32 teams received an automatic qualification with the remaining best 32 teams were selected on an at-large basis.

Regionals for the NCAA Division I Softball Championship will be held May 14-17 on 16 campus sites. At each campus site, a four-team, double-elimination tournament will be conducted and the 16 winning teams advance to the Super Regionals.

Super Regionals for the championship will be held May 21-24 on eight campus sites. At each site, two teams play in a best-of-three tournament format. The winners from each site advance to the NCAA women’s College World Series.

Florida won its first national championship, defeating the University of Alabama 6-3. It was the first time that two SEC teams met in the championship series.

2015 NCAA Division I Softball Championship Automatic Qualifiers (32)
Conference School 2015 Record Appearances Won Lost Last Appearance
America East Binghamton 24-19 First      
American Athletic UCF 48-7 5 7 10 2014
Atlantic Coast Florida St. 45-12 27 58 60 2014
Atlantic Sun USC Upstate 43-8 2 2 4 2014
Atlantic 10 Fordham 36-18 4 4 8 2014
Big East St. John’s (NY) 28-17 First      
Big Sky Weber St. 38-17 First      
Big South Longwood 33-23 1 0 2 2013
Big Ten Michigan 51-6 22 80 49 2014
Big 12 Oklahoma 45-7 21 85 41 2014
Big West CSUN 41-15 13 17 28 2007
Colonial Hofstra 37-12-1 15 25 30 2014
Conference USA Western Ky. 34-12 1 2 2 2013
Horizon Oakland 27-22 2 2 4 2003
Ivy Dartmouth 25-16 1 0 2 2014
Metro Atlantic Fairfield 25-22 First      
Mid-American Ball St. 32-23 2 0 4 2010
Mid-Eastern Florida A&M 18-37 5 1 10 2014
Missouri Valley Indiana St. 26-29 First      
Mountain West Fresno St. 40-14 30 89 61 2011
Northeast Central Conn. St. 31-12 1 1 2 2013
Ohio Valley Tennessee Tech 32-26 4 2 8 2007
Pac-12 Oregon 46-6 16 49 34 2014
Patriot Lehigh 39-7 8 6 15 2012
Southeastern Auburn 48-9 10 10 20 2014
Southern Chattanooga 35-13 9 6 18 2014
Southland Central Ark. 35-19 First      
Southwestern Texas Southern 25-16 1 0 2 2014
Summit North Dakota St. 43-9 5 5 10 2014
Sun Belt South Ala. 38-11 3 7 6 2014
West Coast BYU 39-12 11 15 22 2014
Western Athletic New Mexico St. 46-14 1 1 2 2011

2015 NCAA Division I Softball Championship At-Large Selections (32)
School Conference 2015 Record Appearances Won Lost Last Appearance
Alabama Southeastern 42-12 16 75 35 2014
Arizona Pac-12 38-17 28 153 54 2014
Arizona St. Pac-12 34-20 26 85 51 2014
Baylor Big 12 38-14 9 35 21 2014
California Pac-12 38-16 29 97 65 2013
Florida Southeastern 50-6 15 59 32 2014
Florida Atlantic Conference USA 37-17-1 7 11 14 2006
Georgia Southeastern 40-14 13 50 27 2014
James Madison Colonial 47-8 3 2 6 2014
Kansas Big 12 38-13 11 14 22 2014
Kentucky Southeastern 29-24 6 17 15 2014
La.-Lafayette Sun Belt 39-9 24 65 50 2014
LSU Southeastern 44-11 16 49 33 2014
Louisville ACC 30-17 11 14 22 2014
Minnesota Big Ten 46-9 9 11 19 2014
Mississippi St. Southeastern 35-19 11 11 22 2014
Missouri Southeastern 39-14 18 46 41 2014
Nebraska Big Ten 34-21 22 59 58 2014
North Carolina ACC 36-14 11 13 22 2013
North Carolina St. ACC 35-20 4 6 8 2014
Northwestern Big Ten 28-21 14 41 32 2014
Notre Dame ACC 40-13 19 28 38 2014
Pittsburgh ACC 35-20 First      
San Diego St. Mountain West 36-18 10 14 20 2014
South Carolina Southeastern 37-20 17 34 37 2014
Tennessee Southeastern 42-14 12 59 28 2014
Texas Big 12 36-15 15 47 31 2014
Texas A&M Southeastern 38-18 25 71 54 2014
UCLA Pac-12 45-10 30 191 48 2014
Utah Pac-12 34-17 12 16 27 2006
Virginia Tech ACC 34-21 7 14 16 2014
Washington Pac-12 40-15 21 94 42 2014