Scott Hend of Australia shot a 5-under round of 65 to lead by one stroke after the European Masters third round on Saturday.
Hend's bogey on the par-4 18th, the only blemish of his round, left him at 13 under. Playing partner Alex Noren of Sweden finished one stroke behind.
Noren, the 2009 champion on the Swiss Alps course, followed his 63 on Friday with a 4-under 66.
One of the three morning leaders, Richard Bland of England, had a 1-under 69 to be in third place, three shots back.
Andrew "Beef" Johnston of England was among four players trailing by four shots.
Lee Westwood is the best of Europe's Ryder Cup players, with a 67 to be 5 under. Matt Fitzpatrick's 66 left him nine shots behind Hend.