World number 86 Justin Hood beat sixth seed Danny Noppert in an Alexandra Palace classic as three more seeds exited the PDC World Championship on the final day of competition before the Christmas break.
Hood won a sudden-death leg of a high-quality match to progress to the last 32, having missed a dart at the bull to win in straight sets.
Noppert fought back to force a decider and, helped by some clutch ton-plus finishes throughout, created a victory chance for himself in a dramatic final set.
But Hood, the 32-year-old debutant, held his nerve in the final leg to land a 78 finish, setting up a third-round tie with fellow English left-hander Ryan Meikle.
Both players averaged more than 102 and hit more than 40% of their attempts at doubles.
Hood told Sky Sports: “It was a good game and I knew it would be because Danny is a class player.
“I don’t worry about the pressure, I just throw the darts and if it’s good enough, it’s good enough. Tonight it was.”
Seventeen of the 32 seeds have been knocked out in the opening two rounds of the tournament, with Noppert the highest-ranked player to fall so far.
Also beaten on Tuesday were two-time former champion Peter Wright, who lost in straight sets to German debutant Arno Merk, and Northern Ireland’s Daryl Gurney, who came out on the wrong side of a deciding set with England’s Callan Rydz.