Career
After attending Missouri Western State University, where he was a three-time National Collegiate Athletic Association Division II All-American, he turned pro in 2006. He played on the Adams Pro Tour from 2007 to 2009. From 2010 to 2013, he played on the Web.com Tour.
Garnett improved his money list rank each season, culminating with a 14th-place finish in 2013 which earned him a card for the 2014 Professional Golf Association Tour.
During his rookie season on the Professional Golf Association Tour, he made 20 cuts in 28 events, highlighted by a tie for seventh at the Shell Houston Open. He qualified for the 2014 Federal Express Cup Playoffs, one of only two rookies to do so, the other being Chesson Hadley.
2010 Mary Bird Perkins Open (Adams Pro Tour).