The Alex Borg 6-0 of Malta Defeated to become the first man to reach Across two of the UK Championship at the York Barbican.
The world number four scored 2 breaks of 81 and a century from Borg, rated places.
Ali Carter a semi-finalist at the case, was likewise a 6-0 winner from fellow Englishman Brandon Sargeant on the afternoon.
Robertson was thrilled with a victory that wasnice and easy.
But he believed that he missed on three centuries.
Alex is extremely experienced but he didnt appear, added Robertson, 37, who plays either Robbie Williams or Luo Honghao at the next round. I wasnt actually put under any pressure.
While Englands world number 11 David Gilbert is in actions against James Cahill, scotlands John Higgins, a winner that gets his tournament under way from the evening session from Peter Lines.
World number one Judd Trump and the Amine Amiri from the opening round on Thursday at 14:30 GMT of Morocco play, and seven-time champion Ronnie OSullivan is currently in action against Ross Bulman later that evening.
Video coverage of this tournament begins Saturday out of 13:15 on One.