Fermanagh man Brendan Dolan recorded the first whitewash of the PDC World Championship by beating South African Nolan Arendse 3-0 on Monday night.
Number 11 seed Dolan, 41, won nine straight legs to defeat the tournament debutant and qualifier in the first round at Alexandra Palace.
The Belcoo man faces England's Michael Smith, seeded 22, in the second round at 12:40 GMT on Monday 29 December.
Michael Mansell, from Clonoe, Tyrone, lost 3-0 to Belgian Kim Huybrechts.
The number 18 seed, whose brother Ronny is also playing in the tournament, proved too strong for 41-year-old Mansell, who is currently ranked 42 in the world.
Dolan's next opponent, Smith, who defeated Phil Taylor in last year's tournament, hit nine 180s on his way to wrapping up a 3-1 victory over Mensur Suljovic.
Dolan is aiming to move beyond the second round for the first time, having played in the tournament since 2009.
The 2011 World Grand Prix runner-up lost 4-1 to Gary Anderson in the second round last year, having lost at the same stage in 2010, 2011 and 2013.
The Northern Irishman averaged over 90 and hit almost half of his attempts at doubles in overcoming Arendse.
After a scrappy first leg, Dolan took out 80 to go two legs up and then followed it up with a 13-darter to seal the set with the minimum of fuss.
Dolan hit his first 180 of the match at the start of the second set and then finished 108 to keep the momentum going, following up with double eight in the second and double 16 in the next as Arendse was left stranded on tops in successive legs.
Dolan finished double 10 to claim the opening leg of set three, landed a 180 in the next and double 16 to seal the whitewash win.
"It wasn't as fluent as I wanted it to be but I did enough to get the job done," said Dolan. "I knew I had to start strongly and bully him so he couldn't bully me.
"That's what I did - I started strongly and hit a few doubles to get ahead and I stayed there. Nolan played well in his preliminary round match so I didn't want him to get going as I know he is a good player."
Londonderry man Daryl Gurney lost 3-1 to Ronnie Baxter in the second round on Saturday.
The 28-year-old, ranked 60 in the PDC rankings, bowed out to the former BDO world finalist after beating Scott Mackenzie from Hong Kong 4-3 in the first round earlier on Saturday.
Gurney fought back from 3-0 down to claim a 4-3 preliminary-round victory against Mackenzie, then found Baxter too tough a proposition later in the day.
Derryman Gurney pushed his opponent throughout but Baxter demonstrated his class when it mattered and sealed victory with a superb 12-darter including a 180 and a 104 finish.