Ryan Joyce delivered the shock result of the night as he marked his World Grand Prix bow by eliminating world champion Peter Wright.
Gabriel Clemens accompanied Joyce as yet another seed-slayer by knocking out Nathan Aspinall, while the outstanding Dave Chisnall breezed past Glen Durrant to set up a meeting with Joyce in the next stage.
Gerwyn Price will join Michael van Gerwen as the only other seeded player in the second round after he overcame 2019 quarter-finalist Jermaine Wattimena. Daryl Gurney, who won the Grand Prix in 2017, was also beaten by the impressive Joe Cullen.
Simon Whitlock and Jeffrey de Zwaan meanwhile entered the fold as the respective replacements for Adrian Lewis and Stephen Bunting, both of whom tested positive for coronavirus and were therefore forced to withdraw from the tournament at late notice. While Whitlock brushed aside Chris Dobey, De Zwaan followed suit by making the most of his opportunity with victory over Jamie Hughes.
Debutant Joyce produced the upset of the evening to stun Wright with an outstanding performance that included 10 ton-plus visits, six scores of 140 or more and one maximum.
'Relentless' mopped up 36 to take first blood before finishing off 92 and then checking out 51 for the set following a superb 180 set up shot.
The 35-year-old, who only joined the PDC in 2019, remained resolute amid Wright's efforts to fight back in the second as he finished 69 to level it at two legs apiece before sinking double eight for the win after Snakebite had missed two darts at the double. ราคาบอลไหลล่าสุด
A red-hot Chisnall awaits him after he came out the blocks at blistering speed against Durrant to cruise to a place in the second round having averaged above 100 for much of the contest.
The 2019 World Grand Prix finalist opened with a 15-dart leg followed by a quick-fire 11-dart break, before Duzza took out a superb 97 to get himself back in the match.
Chisnall continued to benefit from the double-to-start format, though, and returned to wrap up a first set in which he averaged 104.95.
His excellent scoring refused to waver, Chizzy taking the first leg in the next set and starting the second with a 160 visit before seeing Durrant miss double tops for a 135 checkout.
Chisnall came back to make it 2-0 and then threw seven perfect darts to put him in the ascendency en route to winning the set and the match. Durrant recorded just one score of 140 or more on the night.