William John Horschel is an American professional golfer who currently plays on the PGA Tour.
Horschel was born and raised in Grant, Florida. He attended Bayside High School in neighboring Palm Bay.
Horschel accepted an athletic scholarship to attend the University of Florida, Gainesville, where he played for coach Buddy Alexander’s Florida Gators men’s golf team in National Collegiate Athletic Association (NCAA) competition from 2006 to 2009. He was a four-time All-American, including three first-team honors, and the Southeastern Conference (SEC) player of the year in 2007 and 2009. He was a 2008 PING southeast all-region selection. He graduated from the University of Florida with a bachelor’s degree in sport management in 2009. He represented the United States at the Palmer Cup on two occasions in 2007 and 2008 gaining 4.5 points. He posted a 3–1 record for the victorious 2007 Walker Cup team.
Horschel won the individual medalist honors at the 2006 U.S. Amateur, shooting a two-day score of 138 (60-78, −5) at Hazeltine National Golf Club in Chaska, Minnesota. His opening round of 60 was an 18–hole tournament and USGA record. He failed to make it past the third round of match play. He also played in the 2006 U.S. Open, but he missed the cut.