He had not beforehand recorded a aggressive 147 for the reason that 2018 English Open.
He’s solely the second participant to make two 147s in the identical match, after Welshman Jackson Web page achieved the feat in qualifying for the Worlds in April.
O’Sullivan’s tally of 17 is 4 greater than that of John Higgins, who’s a fellow member of snooker’s fabled ‘Class of 92’.
The Englishman, who additionally loved breaks of 142 and 70 to guide 3-1 on the mid-session interval, was in scintillating kind all night.
Whereas Wakelin made a 125 break on his strategy to drawing degree at 3-3, O’Sullivan’s second 147 of the night was adopted by a 67 and a 134 to spherical off an imperious show.
He’s additionally in line to assert a two-thirds share of a £50,000 147 bonus with Thepchaiya Un-Nooh, who knocked within the third most of the season earlier this week.
In Friday’s earlier last-four match – at a event thought to be snooker’s ‘fourth main’ by organisers – Robertson claimed a 6-3 win over Elliot Slessor.
Whereas neither participant was at their finest, the rejuvenated Australian was at all times in management and loved two runs of 93 and a 50 as he reached the thirty ninth rating closing of his profession.
“The beginning was essential right now, I may see Elliot was a bit nervous and I used to be ready to make use of my expertise,” stated 2010 Crucible winner Robertson.
“To get to the ultimate is big by way of rating factors, it means I needs to be in all the large occasions later within the season which makes my scheduling a lot simpler.
“I took that with no consideration just a few years in the past after I was at all times within the high 4. The usual is so excessive now that I’ve realised you need to preserve your foot down on a regular basis. Lots of onerous work has occurred to get these type of outcomes.”