Thailand’s Sadom Kaewkanjana secured the biggest title of his fledging career today when he won the US$1.25 million SMBC Singapore Open at Sentosa Golf Club. Sadom, the joint-overnight leader, fired a composed bogey-free 69 on the Serapong Course to finish on 13 under and beat Japan’s Yuto Katsuragawa and Joohyung Kim from Korea by three strokes. Katsuragawa returned a 68 …