Perth - Sweden's Peter Hedblom was the halfway leader of the Perth International on Friday as he sought to win the final tournament on the European Tour to retain his tour card for the 2014 season.
Hedblom, who shared in a four-way lead after the opening 18 holes, fired three-under 69 to claim the outright lead at seven-under 137.
The Swede was two shots clear of Englishman Ross Fisher, who carded the lowest round of the day shooting five-under 67.
While England's Paul Casey missed the cut, Hedblom was dreaming of a fairytale win in the $2 million Perth tournament at Lake Karrinyup.
Casey, a 12-time winner on the European Tour, missed the cut by one stroke after finishing his second round at three-over.
The next two days will be make-or-break for Hedblom, who needs to win the tournament to retain his European Tour card for next year.
"I don't really have anything to lose. If I want to play another full year on Tour, I need to win," Hedblom said.
"So I just have to go for it and have fun. I think I'm better when I'm up in the lead rather than trying to shoot a low score to try to get into the lead."
Denmark's Soren Hansen (71-69) was among five players at four-under 140, while world number 21 Dustin Johnson of the United States was six shots off the pace after a two-over 74.
American defending champion Bo van Pelt was at three-under for the tournament.
Fisher's highlight of the round was a 20-metre chip-in from the bunker on the par-3 eighth.
"It was a decent lie but it was coming down the green and downhill, so I knew it was going to be pretty quick," Fisher said.
"I'm still getting used to the greens. Obviously, they are a lot quicker than what myself and all the Europeans are used to."
A member of the European Ryder Cup team in 2010, Fisher has had a top-10 finish on the PGA Tour and another four on the European Tour this year.
Leading scores after the second round of the $2 million EPGA-sanctioned Perth International at Lake Karrinyup (par-72) in Perth on Friday (Australia unless stated):
137 - Peter Hedblom (SWE) 68-69
139 - Ross Fisher (ENG) 72-67
140 - Soren Hansen (DEN) 71-69, Clint Rice 68-72, Josh Younger 70-70, Jin Jeong (KOR) 68-72, Dimitrios Papadatos 69-71
141 - Brody Ninyette 72-69, James Nitties 68-73, Bo Van Pelt (USA) 70-71, Richard Finch (ENG) 72-69
142 - Marcus Fraser 72-70, Fredrik Andersson Hed (SWE) 69-73, Jason Scrivener 75-67, Michael Hoey (NIR) 73-69, Ryan Haller 72-70, Nick O'Hern 69-73, Mark Brown (NZL) 70-72, Nick Cullen 69-73, Christopher Campbell 71-71
143 - Ross McGowan (ENG) 71-72, Paul Spargo 72-71, Peter Lawrie (IRL) 73-70, Alexandre Kaleka (FRA) 74-69, David McKenzie 75-68, Gareth Paddison (NZL) 74-69, Fabrizio Zanotti (PAR) 75-68, Dustin Johnson (USA) 69-74, Danny Willett (ENG) 72-71, Peter Wilson 72-71, JB Hansen (DEN) 70-73
144 - Soren Kjeldsen (DEN) 76-68, Oliver Fisher (ENG) 72-72, Espen Kofstad (NOR) 71-73, Joel Sjoholm (SWE) 71-73, Mikko Korhonen (FIN) 73-71, Sam Little (ENG) 69-75, Craig Lee (SCO) 73-71
145 - Chris Doak (SCO) 72-73, David Higgins (IRL) 73-72, Justin Walters (RSA) 76-69, James Morrison (ENG) 73-72
146 - Branden Grace (RSA) 73-73, Gregory Havret (FRA) 73-73, Scott Henry (SCO) 74-72, Mark Tullo (CHI) 75-71, Richard Bland (ENG) 75-71, Richard McEvoy (ENG) 76-70, David Drysdale (SCO) 72-74, Simon Wakefield (ENG) 72-74, Bjorn Akesson (SWE) 69-77
147 - Paul Casey (ENG) 76-71, James Kingston (RSA) 74-73, Alexander Levy (FRA) 74-73, Thomas Petersson (SWE) 70-77, Jose Manuel Lara (ESP) 73-74, Robert Coles (ENG) 70-77
148 - Tjaart Van Der Walt (RSA) 75-73, Gary Lockerbie (ENG) 74-74, Lasse Jensen (DEN) 77-71, Michael Jonzon (SWE) 73-75
149 - Brandon Stone (RSA) 77-72, Rikard Karlberg (SWE) 76-73, Anthony Snobeck (FRA) 73-76
150 - Chris Paisley (ENG) 77-73, Johan Edfors (SWE) 73-77, Oscar Floren (SWE) 75-75
152 - Andreas Harto (DEN) 77-75
153 - Matthew Nixon (ENG) 79-74
154 - Peter Erofejeff (FIN) 75-79
155 - Lorenzo Gagli (ITA) 78-77
156 - Joakim Lagergren (SWE) 81-75
158 - Matteo Delpodio (ITA) 78-80
160 - Dawie Van Der Walt (RSA) 78-82