Former Northern Ireland Open champions Kyren Wilson and Mark Williams remain on course for a potential meeting in the final of this year's tournament in Belfast after winning their respective quarter-finals on Friday.
World number nine Wilson ran out a convincing 6-1 winner over Anthony McGill in the afternoon session at the Waterfront Hall, while Williams, who sits one place higher in the rankings, defeated David Gilbert 6-4 during the evening's play.
Wilson, who claimed both the world title and the NI Open crown in 2024, established a 4-0 lead over his Scottish opponent with the help of breaks of 77, 75 and 122.
McGill took the next with a run of 66 but the Englishman eased home to progress and secure a first semi-final appearance at a ranking event since March 2025, with compatriot Sam Craigie his next opponent.
Craigie advanced to only his second-ever ranking event semi-final by beating Elliot Slessor 6-2.
Slessor took an early lead after compiling an 82 but Craigie reeled off five frames in a row and ultimately clinched a comfortable passage to the last four.
Gilbert built a 3-1 lead over Williams with the help of breaks of 62, 95 and 60, but after they shared the next two, Williams scored three centuries in consecutive frames as he took the next four to seal victory.
The 51-year-old three-time world champion and 2017 NI Open winner will take on fellow Welshman Jak Jones in Saturday's second semi-final.
Jones, who has already collected the British Open and Championship League titles this season, edged out Scott Donaldson 6-5 in a late-night thriller, a break of 84 in the decider proving decisive in booking his berth in the last four.