Hendrickson ranks ninth in career wins among all active NCAA Division One head baseball coaches. He has 805 victories in his 21 years of coaching at the collegiate level. He has coached 27 players who have signed professional baseball contracts. Hendrickson has been the head baseball coach at St. Louis University for the past nine years. He had seven consecutive winning seasons from 2009 to 2015 which is a St. Louis University record. The Billikens won the league championship in 2012, 2013, 2014, and 2015. He led the Billikens to a school record 41 victories in 2012 and 2013. In 2012, he was named Atlantic 10 Coach of the Year. In 2013, he received Honorable Mention as College Baseball National Coach of the Year. He was also named one of Perfect Game’s Rising College Coaches. In 2012, the Billikens won 13 consecutive games, a school record, and were ranked nationally for the first time in school history. The Billikens won 30 games or more in 2009, 2010, 2012, 2013, 2014, and 2015. Hendrickson led his Billiken team to the Atlantic 10 Tournament Championship in 2010 and 2013. Ten of his Billiken players have signed professional baseball contracts. Before he came to St. Louis University, Hendrickson was a highly successful baseball coach at the University of Central Missouri, and also Forest Park Community College. Hendrickson received his first head coaching experience at Fontbonne University where he started that school’s baseball program in 1995. He served as an assistant baseball coach at his alma mater, SIU-Edwardsville, following his graduation in 1992. A right-handed pitcher, Hendrickson starred on the mound for SIU-Edwardsville in 1990 and 1991. He was named to the All-Region team both years. He ranks second in school history in single season victories, and twelfth in career victories. He ranks fourth in career winning percentage. Hendrickson pitched for Lewis & Clark Community College from 1987 to 1989. He was a pitcher for Granite City High School from 1984 to 1987. Hendrickson pitched in the Mon-Clair League for Granite City, helping his team win three league championships. He was selected to ten Mon-Clair League all-star teams. He was the top pitcher in the league five years in a row from 1994 to 1998. He also pitched for the Waterloo Buds, helping his team win three Mon-Clair League titles. He was chosen for three Mon-Clair all-star teams. In 2006, Hendrickson was inducted into the Mon-Clair League Hall of Fame.