2007 Big Ten Softball Tournament  The 2007 Big Ten Conference Softball tournament was held at Buckeye Field on the campus of Ohio State University in Columbus, Ohio from May 10 through May 12, 2007. As the tournament winner, Ohio State earned the Big Ten Conference's automatic bid to the 2007 NCAA Division I Softball Tournament. The 2007 tournament was an eight team single-elimination tournament. The top eight teams based on conference regular season winning percentage earned invites to the tournament.