Dean Winstanley was left "totally blown out" as he survived an epic first-round contest against Mervyn King on his Ladbrokes Darts World Championship debut.
The 31-year-old Yorkshireman had to ride his luck as he progressed 6-4 in the deciding set of a see-saw encounter.
King, the 14th seed, twice missed double-top chances to clinch the match before Winstanley eventually located the same part of the board to secure a stunning first win at Alexander Palace.
"I'm totally, unbelievably gone. That was a battle," he told Sky Sports 1.
"Why can't I have straight forward (matches)? I'm totally blown out.
"The feeling's amazing. I'm really, really happy."
The former BDO World Championship finalist trained alongside Raymond van Barneveld in Holland in the lead-up to the tournament and admitted the experience had proved invaluable.
"Raymond, I'll give him his dues - he's amazing," he said.
"We had the most enjoyable three days of my life in darts. No phones, no women, no nothing."
Sixth seed Wes Newton enjoyed a far easier night as he went though 3-0 against another debutant Johnny Haines.
Former world champion Steve Beaton progressed by the same scoreline although he was far from his best as Oceanic Masters winner Kyle Anderson missed his chance at an upset.
The Australian had darts to win the opening two sets before Beaton eventually set up a second-round meeting with last year's semi-finalist James Wade.
"I got away with it a bit. I kept giving him chances but thankfully they weren't taken," Beaton told the tournament's official website www.pdc.tv.
"I'll be up for playing James in the next round. I know what to expect from him and I'll prepare properly for that."
Colin Osborne defeated preliminary-round qualifier Lourence Ilagan 3-0 in the night's final match.