Further delays caused by mist means that the North of Ireland will be forced to run into Saturday.
The first two match-play rounds were not completed as scheduled on Wednesday which left organisers with a backlog of second-round games.
These included Dermot McElroy's match with Michael Reid which saw Galgorm player Reid defeating the Irish international by 2&1 on Thursday.
Reid plays Gary Hurley in Friday morning's quarter-finals.
West Waterford player Hurley defeated Knock's Simon Miskelly 3&2.
Chris Selfridge is into the last eight after beating Michael Sinclair 6&5.
Selfridge will face leading qualifier Headfort's Brian Casey in the quarter-finals on Friday morning after the Meath-based player hammered Warrenpoint's Stephen Coulter 5&4.
Belvoir Park's Harry Diamond is also into the quarter-finals after edging out Lurgan's David Sutton by one hole in the last 16.
Diamond will meet Ardglass man Cormac Sharvin on Friday morning.
Diamond, who had to battle hard to make the match play stages after an opening 76 at the Valley, had achieved comfortable opening wins over Shandon Park's Chris Carroll (5&4) and Baltray's Gareth Bohill (7&6).
Sharvin ended the run of joint leading qualifier Rathmore's Ben Best by claiming a 3&2 win in the last 16.
Best, who was joint leading qualifier along with Casey and Massereene's Tiarnan McMahon, had completed a 3&2 win over Irish international Simon Ward on Thursday morning.
Tullamore's Stuart Grehan has progressed to the last eight after beating Balbriggan's Robbie Cannon 3&1 in the last 16 and will meet Portmarnock's Geoff Lenehan, who beat Gary Collins of Rosslare 2&1.