 Kim turned professional in 2006 and after receiving a sponsor's exemption he finished in a tie for second on his PGA Tour debut at the 2006 Valero Texas Open.He earned his PGA Tour card through the qualifying school for the 2007 season.He made a strong start and broke into the top 100 in the Official World Golf Rankings in May 2007 with four top 10 finishes during his rookie season on the PGA Tour.