He had a final-round 3-under 69 and finished 12-under 276 for his second career title.
Ive had that putt a thousand times in my life, said Klauk of the winning shot that resulted in a one-stroke victory, his first since 2003. Right to left, just outside the hole. I just visualized it going in. It was probably the best putt I hit all week.
Klauk, one of four co-leaders to begin the day at The Country Club at Woodmore, finished off the win with a birdie from just in front of the hazard line behind the 18th green.
The putt got him to 12-under and ahead of Jeff Brehaut, who was holding the clubhouse lead at 11 under, and David Mathis, who was playing in the final group right behind Klauk and 11 under.
When Mathis, needing a birdie to tie, hooked his second shot at the par-5 hole into the water near the green, Klauks victory was secure.
Brehaut (67) and Mathis (70) tied for second. Scott Gutschewski (69), Craig Bowden (69) and Australian Greg Chalmers (70) shared fourth place, two shots back. Ricky Barnes (71) and Gary Christian (71) tied for seventh, three behind the winner.
I was nervous, dont get me wrong, said Klauk, who is in his seventh season on the Nationwide Tour. Ive been working with my coach, Cody Barnes, on keeping my mind quiet. Everybody knows out here youve got to really trust yourself and believe. Ive been doing that this year, more so than any swing change. Its just believing in yourself and I finally started doing that.