Mark Selby in the last 64. In the first round of the Masters, Selby played against Mark Willams in a repeat of the 2017 edition. However, it was Williams who prevailed in their encounter 6–5. It was also the second time that Selby lost in a deciding frame at the tournament. Selby retained his China Open title, defeating Barry Hawkins 11–3 in the final. It was the 3rd China Open title he won in 4 years. Selby's two-year reign as World Champion came to an end at the first round of the 2018 World Snooker Championship. Facing Joe Perry, Selby trailed 2–7
Mark Selby He continued his form at the Shanghai Masters, where he won his second major ranking event by defeating Mark Williams 10–9 in the final, having trailed 9–7. The win also meant Selby usurped Williams as the world number one, making him the ninth player to hold the top spot and the first to do so without having previously won the World Championship. He also won the minor-ranking PTC Event 4 (also known as the Paul Hunter Classic) with a 4–0 whitewash over Mark Davis, having edged out Ronnie O'Sullivan 4–3 in the semi-finals. Selby would later finish 5th on the