Simon Whitlock came from 4-0 down to defeat Raymond van Barneveld 13-8 in a bizarre contest.
Van Barneveld began the game using a new set of darts after changing from the set he had used to defeat Vincent van der Voort in the first round, but after seeing Whitlock come back to lead 9-6 then changed back to his original set.
Whitlock, though, had taken out finishes of 128, 120 and 111 in clawing his way back into the game, and though van Barneveld finished 132 as he pulled back to 11-8, another 120 checkout helped the number four seed to complete the win.
PAUL NICHOLSON erased the memory of his painful defeat in last year's BetVictor World Matchplay with a gutsy 10-8 defeat of Robert Thornton on Sunday afternoon, as Dave Chisnall, Richie Burnett and Andy Hamilton joined him in the second round in Blackpool.
Nicholson had left the Winter Gardens stage in tears 12 months ago as he allowed a lead to slip against Dave Chisnall, but this year progressed through a tough first round clash with Thornton before emotionally celebrating his triumph.