TOKYO - Taiwan's Chan Shih-chang shot a stunning final-round 62 to win the Asia-Pacific Diamond Cup by two strokes on Sunday at Ibaraki Country Club. The 30-year-old's flawless eight-under-par round saw him finish on 10-under 270 and take the winner's cheque for $294,204, almost double his entire 2016 Asian Tour earnings of $149,453 heading into the tournament. He was off to a blistering start with birdies at three of the first four holes to turn in 32, before five more on the back nine of his bogey-free round saw him climb from 13th place at the start of the day into the winner's circle. Chan had started the day six shots behind the overnight leader Phachara Khongwatmai. But the Thai teenager fell away with four bogeys on his card of two-over 72 to finish in a three-way tie for fourth.