Background
Knost was born in Garrettsville, Ohio and grew up in Pilot Point, Texas.
Knost was born in Garrettsville, Ohio and grew up in Pilot Point, Texas.
He graduated from Southern Methodist University in 2007.
Career While at SMU, he earned all-conference and all-region honors. He was also named the 2004 Western Athletic Conference Freshman of the Year. In September he represented the United States at the 2007 Walker Cup.
He was the number one ranked golfer in the World Golf Ranking for five weeks in 2007 before turning professional.
Shortly after winning the, he turned professional, forfeiting his invitations to The Masters, the United States. Open, and the Open Championship. Knost played in three events on the Professional Golf Association Tour as a professional in 2007, making two of three cuts with his best finish coming at the Frys.com Open, where he finished T-38.
Knost went to qualifying school to try to earn his Professional Golf Association Tour card for 2008 but his finish of T-85 was not good enough to earn him his card. He finished 6th on the money list with $329,509 and earned his 2009 Professional Golf Association Tour card.
On the Professional Golf Association Tour, Knost made only 11 of 24 cuts, with his best finish coming at the Bob Hope Classic where he finished T-25.
He finished 193rd on the money list and returned to the Nationwide Tour in 2010. By finishing 2010 at 15th on the Nationwide Tour money list, he earned his Professional Golf Association Tour card again for 2011. He finished only 156th in the Fedex Cup list for 2011, but was successful at the 2011 qualifying school (by the narrowest margin of one stroke).
In 2012 he finished 120th to retain his Professional Golf Association Tour card, but in 2013 he finished 184th and dropped back to the Web.com Tour.
In the 2014 Web.com Tour Finals he finished second (excluding the regular-season Top 25) and returned to the Professional Golf Association Tour for 2015. He finished that season 91st on the Federal Express Cup rankings to retain his Tour card. wins (3) 2005 Dixie Nationwide Tour wins (2) Walker Cup: 2007 (winners).