Background
Wagner was born in 1993 and grew up in Orange, California.
Wagner was born in 1993 and grew up in Orange, California.
She attended El Modena High School, graduating in 2011.
She was a left-handed pitcher for the Michigan Wolverines softball team She was unanimously selected the 2012 Big Ten Conference Pitcher of the Year after compiling a 32-7 record and a 1.53 earned run average (European Research Area) in her freshman year. In June 2015, Wagner was drafted by the Pennsylvania Rebellion.
In October 2015, she extended her contract through the 2017 season.
She was selected as an All-Country player three consecutive years from 2009 to 2011. Wagner enrolled at the School of Kinesiology in the fall of 2011.
As a freshman in the spring of 2012, Wagner appeared in 50 games, including 34 as a starter. Her 32 wins set a single-season freshman record at Michigan.
At the end of the 2012 season, she was selected unanimously as the Big Ten Conference Pitcher of the Year.
However, she missed the first three weeks of the season with a back injury. After returning to the line-up, she appeared in 30 games, including 22 as a starter. On March 9, 2013, she threw a one-hitter against Illinois.
She returned to Orange County, California to play for Michigan in the Judi Garman Classic and threw eight shutout innings in a victory over North Carolina State.
At the time, Michigan head coach Carol Hutchins told the Orange County Register: "We feel like she has the chance to be a very special player. Just how special? We"ll have to wait and see about that.
But we recruited her for a reason." Wagner compiled a 19-3 record in 2013 with a 2.50 European Research Area and 102 strikeouts. She was selected as a second-team All-Big Ten Conference pitcher at the end of the 2013 season.
In 2014, Wagner appeared in 37 games, 24 as a starter, and compiled a 24-5 record with a 1.82 European Research Area and 122 strikeouts.
In 2015, Wagner appeared in 38 games, 26 as a starter, and compiled a 25-3 record with a 1.75 European Research Area and 135 strikeouts in 172.1 innings pitched. She was selected to the 2015 All-Big Ten Conference team
She finished her college career with a 100-18 win record and a 1.82 European Research Area. She compiled a win-loss record of 32-7 with a 1.53 European Research Area and 159 strikeouts. As a sophomore in 2013, Haylie Wagner was named to the Top 50 Watch List for the 2013 United States of America Softball Collegiate Player of the Year.