SEA ISLAND – American Kevin Kisner, a runner-up four times this year, captured his first US PGA Tour title Sunday, firing a six-under par 64 to win the RSM Classic by six strokes. Kisner’s second 64 in a row left him on 22-under 260 for 72 holes with countryman Kevin Chappell second on 266 and Northern Ireland’s Graeme McDowell third on 267. The 31-year-old who grew up just down the road from Augusta, Georgia, earned a berth in his first Masters and put a year of near-misses behind him. In addition to a second place behind Scotsman Russell Knox earlier this month at the World Golf Championships event in Shanghai, Kisner lost playoffs to Jim Furyk at the Heritage last April, Rickie Fowler at the Players Championship last May and New Zealand’s Danny Lee last July at the Greenbrier Classic.