NeSmith, 18, shot 69-74-70 at Berkeley Hall.
Australia’s 21-year-old Daniel Nisbet, who led University of Alabama golfer Bobby Wyatt by one shot after 54 holes, picked up the victory and earned a spot in the PGA Tour’s RBC Heritage in April.
Nisbet appeared on his way to an easy victory when the rains came. He had built a six-shot lead after 10 holes on Sunday was play was suspended. The round was canceled 90 minutes later.