Unbeaten Andy Boulton was joined by Ron Meulenkamp, Ryan Meikle, Marko Kantele in progressing from the second phase of PDC Home Tour II in Group Five on Wednesday.
The second stage of the event came to a close as the final seven players competed for places in Phase Three.
Boulton enjoyed a perfect day to progress into the Last 21 with six wins from as many matches, which included deciding-leg wins over Steve Brown, Ron Meulenkamp and Ryan Meikle.
Meulenkamp also progressed with four wins on the day, while Meikle and Marko Kantele moved through with three wins from their six games.
Alan Tabern missed out despite three wins of his own, while Matthew Edgar and Steve Brown were eliminated from the event.
PDC Home Tour II will conclude next week, with Phase Three seeing three groups held on Monday, Tuesday and Wednesday ahead of the Championship Group on Thursday.
The top two players from each group will progress to the Championship Group, alongside the best-performing third-placed player.
The PDC Home Tour II will be broadcast through PDCTV and bookmakers' websites worldwide, with play commencing from 0930 UK time on each day.
PDC Home Tour II Schedule
Monday October 12 - Phase Three, Group One
Tuesday October 13 - Phase Three, Group Two
Wednesday October 14 - Phase Three, Group Three
Thursday October 15 - Championship Group
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Phase Two Group Five
Wednesday October 7
Ron Meulenkamp 5-1 Marko Kantele
Alan Tabern 5-4 Ryan Meikle
Andy Boulton 5-4 Steve Brown
Ron Meulenkamp 5-0 Matthew Edgar
Andy Boulton 5-3 Marko Kantele
Alan Tabern 5-1 Steve Brown
Matthew Edgar 5-2 Ryan Meikle
Andy Boulton 5-4 Ron Meulenkamp
Marko Kantele 5-2 Alan Tabern
Ryan Meikle 5-1 Steve Brown
Andy Boulton 5-3 Matthew Edgar
Ron Meulenkamp 5-3 Alan Tabern
Ryan Meikle 5-2 Marko Kantele
Matthew Edgar 5-3 Steve Brown
Andy Boulton 5-1 Alan Tabern
Ryan Meikle 5-1 Ron Meulenkamp
Marko Kantele 5-2 Steve Brown
Alan Tabern 5-3 Matthew Edgar
Andy Boulton 5-4 Ryan Meikle
Ron Meulenkamp 5-2 Steve Brown
Marko Kantele 5-4 Matthew Edgar