Lewis came back from 5-3 down and survived a match dart from Gurney like he has done in his last two games.
He ran out a 6-5 winner to prove the luck is firmly on his side. Could he hit the Jackpot this weekend??
Cullen in contrast survived a comeback to make it through. He was 5-1 up and seemingly cursing before a late rally from Dekker to force a decider.
It was the Rockstar though who is through to yet another Quarter-Final.
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Rob Cross (3) (102.19) 6-4 (96.38) Michael Rasztovits
Mensur Suljovic (6) (103.54) 6-2 (84.50) Darren Webster (11)
James Wilson (95.21) 6-3 (95.16) Robert Thornton
Michael Smith (2) (91.20) 4-6 (90.35) Ron Meulenkamp
Daryl Gurney (4) (90.75) 5-6 (92.33)
Adrian Lewis Joe Cullen (5) (98.62) 6-5 (100.59) Jan Dekker
15:00 Terry Jenkins v Dave Chisnall (9)
15:30 Michael van Gerwen (1) v Martin Schindler