Thepchaiya Un-Nooh eased into the last 64 of the BetVictor English Open in Brentwood, beating Oliver Sykes 4-1.
Thailand's Un-Nooh fired breaks of 94 and 78 as he set up a third round match with Pang Junxu on Monday night. China's He Guoqiang made a 61 in the decider to beat Wang Yuchen 4-3 and he will now face Ronnie O'Sullivan on Tuesday evening.
Artemijs Zizins continued his impressive start to the season as he beat Robbie Williams 4-2 with a top break of 138. Joe Perry top scored with 97 in a 4-1 defeat of Jimmy White, while India's Ishpreet Singh Chadha fired runs of 53, 76 and 88 in a 4-2 defeat of Graeme Dott.
David Grace enjoyed a 4-0 success against Marco Fu to set up a meeting with Kyren Wilson, while Jimmy Robertson top scored with 86 in a 4-1 defeat of Alexander Ursenbacher. Xi Si edged out Ka Wai Cheung 4-3 in a match which featured a century and five more breaks over 70.