Andy Hamilton produced the shock of the first round to knock Premier League winner Gary Anderson out of the World Matchplay at the Winter Gardens.
Hamilton, from Stoke-on-Trent, won four legs in a row to complete a 10-6 win.
"I've not had the best year but it feels great to be winning and performing like I can," said Hamilton, a former semi-finalist in Blackpool.
"I had nothing to lose and everything to gain against Gary. I went into the game relaxed and felt great on stage."
The 44-year-old continued: "When Gary got back into the game at 6-6, I thought I'd lost it.
"But my scoring was good throughout the game and there were a couple of good finishes which got me going again."
Hamilton will be joined in the last 16 by Simon Whitlock, Denis Ovens and World Matchplay debutant John Henderson, who all won their first-round matches on Tuesday evening.
The second round gets under way on Wednesday, with world champion Adrian Lewis and UK Open winner James Wade both in action.