Mark Allen and Joe Swail are both through to the third round of the UK Championships.
Allen, who lost the final to Judd Trump in 2011, hit 102 in the seventh frame against Michael Georgiou to take control and then wrapped up a comfortable win in the next.
He can now look forward to the next round.
And Swail beat amateur Adam Duffy, who shocked two-time winner Ding Junhui in the opening round, but Gerard Greene lost out to England’s David Gilbert.
And world number one Selby breezed into third round with a 6-0 whitewash of Oliver Lines.
The 2012 winner made an early mark with a break of 133 in the first frame and never relinquished control to stroll to victory and give Lines no chance.
The Leicester cueman had the chance for a maximum break in the last frame but, having reached 97, missed a simple 13th black.
“I just took my eye off it,” Selby told worldsnooker.com.
“I made a maximum here two years ago so I had that in my mind and perhaps I got ahead of myself.
“But I am through to the next round and that is what it is all about. I will refocus for the next match.”
That 147 en route to the 2013 Barbican final was the 100th in competitive snooker history.