Daryl Gurney got the defence of his Unibet Grand Prix title off to the perfect start with a 2-0 win over John Henderson at Citywest.
The Derry man, who saw off the Scot in last year's semi-final, won both sets 3-1 to book a round two meeting with Ron Meulenkamp of Holland on Tuesday.
"I was happy with the performance, the averages didn't matter, just as long as I got over the finish line," the world number five told RTE Sport.
We need your consent to load this SoundCloud contentWe use SoundCloud to manage extra content that can set cookies on your device and collect data about your activity. Please review their details and accept them to load the content.Manage Preferences
"John Henderson doesn't give up and gives you nothing lightly."
Meanwhile, Steve Lennon never got going against world number one Michael van Gerwen.
The 24-year-old Carlow man, making his debut at the tournament, lost 2-0 without winning a leg.
The Dutch man, a three-time winner in Dublin, averaged 92.97 and hit 86% of his double shots.
Van Gerwen will play Darren Webster, who accounted for Stephen Bunting, in round two.
Lennon told RTE Sport: "It was obviously a different experience, I haven't played in front of a crowd with such a massive following. I appreciate everyone who supported me but it's a pity I didn't play too well.
"I'll take this as a learning experience, it was a great experience."
RECAP!
— PDC Darts (@OfficialPDC) September 30, 2018
Here's the full results from Day One of the @unibet World Grand Prix! A great opening night here at the @CitywestHotel.#Unibet180 pic.twitter.com/uXGndQTegq