Danish golfer Thorbjorn Olesen still leads the way at the $1.75m Perth International, but England’s James Morrison and South Korean Sihwan Kim remain within striking distance.
Olesen sits at 16 under after six holes, while Kim and Morrison are three shots behind.
Wade Ormsby, Ryan Fox and Stephen Dartnall are the best-placed Australians at nine under, while rising French star Victor Dubuisson has moved to 10 under.
Former Masters winner Charl Schwartzel has fallen off the pace, with the South African now eight shots off the lead after going one over through nine holes on Sunday.