SHANGHAI, Oct 30 (Reuters) - Japan's Hideki Matsuyama cruised to his first World Golf Championship title with a dominant seven-shot victory at the $9.5 million WGC-HSBC Champions on Sunday. The world number 10, who won the Japan Open earlier this month, began the day with a three-shot cushion and carded a six-under-par 66 in the final round to finish on 23-under for the tournament. ... More...