Fermanagh's Brendan Dolan has exited the World Grand Prix at the first stage following a 2-1 loss to Lithuania’s Darius Labanauskas, who won through to the second round on his tournament debut.
At the event, held in Leicester rather than Dublin for the second consecutive year due to Covid-19 restrictions, world number 39 Labanauskas produced a 156 checkout in the opening set of his victory and responded after losing the second set 3-0 by winning three straight legs, which included a 14-dart finish, in the decider.
With Daryl Gurney losing out to Stephen Bunting on Sunday, it means that Irish involvement in the competition at the Morningside Arena has quickly evaporated.
Jonny Clayton celebrated his 47th birthday with an impressive 2-0 win against Callan Rydz to reach the next round.
Premier League champion Clayton landed six doubles from 10 attempts in the annual double-start tournament and lost just one leg against tournament debutant Rydz.
World number 14 Clayton averaged over 95 and landed a 170 checkout on his way to the last 16.
Clayton said in his post-match interview on the PDC's official Twitter account: "I haven't stopped shaking to be honest, but job done, I had a tough opponent.
"I had my Nando's, I love my Nando's, but nobody bought it for me on my birthday, I had to pay for it myself! I can relax though now for a day or two."
Former World Grand Prix runner-up Gary Anderson fell at the first hurdle, losing 2-1 in a tense affair to Ian White.
White sealed victory with his ninth match dart in the deciding leg after Anderson had levelled it up at 2-2 with the help of two 180s.
"I'm happy to go through, but I don't think it was a classic," White said. "The two of us are good friends. We go fishing together, so it was hard work."
Krzysztof Ratajski secured his first win at the World Grand Prix at the third attempt after coming from a set down to defeat world number 10 Nathan Aspinall 2-1.
Ratajski said: "I'm very happy. It was one of the hardest matches in my career. It was really hard for me and I'm glad that I won.
"Nathan Aspinall is a class player. He's one of the best players in the Premier League, so I'm happy."
Vincent Van Der Voort reached the second round in his 10th World Grand Prix appearance by beating German Gabriel Clemens 2-0.
Dutchman Van Der Voort hit back-to-back checkouts of 104 and 82 to take the opening set 3-2.