Mark Williams began his German Masters title defence with a 5-0 thrashing of Ken Doherty in Berlin.
The world number two made breaks of 50, 51 and 107 to set up a last 16 tie with Stuart Bingham, who beat Peter Ebdon.
"To beat anyone 5-0 is a good result," said Williams. "Ken's a very tough opponent so to beat someone of his calibre is even better."
John Higgins hammered Mark Davis 5-1, while Shaun Murphy edged past Barry Hawkins 5-4.
The 2005 world champion came from behind to win, securing victory with a break of 82 in the final frame at Berlin's Tempodrom venue.
Murphy, who was runner-up to Neil Robertson at the BGC Masters last month, will play Ricky Walden after the Englishman beat Martin Gould 5-1.
"It was always going to be a tough match, Barry played like a man with a lot of confidence," said Murphy. "We both had chances in the last and I was lucky that he got a massive kick on the red to the middle.
"I think I'm due a title as I've been putting a lot of effort in and you usually get out what you put in. I thought it would pay off at the Masters but I missed out in the final."
Higgins managed a top break of 64 in his victory and was underwhelmed by his performance.
"It was scrappy," said Higgins. "I'm glad to get through, but I need to improve. Mark has been playing really well recently and that must have been one of his worst performances.
"I feel pretty fresh because I've not really done anything this season.
"There are four or five ranking events now before the World Championship so hopefully I can play my way into form."
The day's other matches saw Stephen Maguire hammer Ryan Day 5-1 to set up a meeting with Higgins while Stephen Lee beat Adrian Gunnell 5-2.