Emiliano Grillo moved closer to securing his European Tour card for 2013 - and his first professional title - by shooting a 5-under 67 for a four-stroke lead after the second round of the Perth International on Friday.
The 20-year-old rookie had two eagles and two birdies at Lake Karrinyup to finish at 11-under 133. Bo Van Pelt (67) and Jason Scrivener (69) were tied for second.
Jason Duffner shot a 67 and was tied for fourth five strokes off the lead with Max McCardle (70) and overnight leaders Alejandro Canizares (73) and Michael Hendry (73).
Paul Casey conceded three bogeys and a double bogey for a 75 to drift out of contention heading into the weekend, while 2011 Masters winner Charl Schwartzel followed a first-round 71 with a 76 to miss the cut by one stroke.
Grillo is 112th in The Race to Dubai with the top 115 after next month's Hong Kong Open retaining cards for next season.
He showed his intent by sinking a 40-foot birdie putt on the first hole, then chipped in from th...