Paul Lawrie blamed a poor performance on the tee as he shot a second round 73 at the Dubai World Championship.
After a promising start with three birdies in the opening four holes, a double-bogey at 12 was followed by bogeys at 15, 16 and 17.
That left the Scot six shots behind the leader Alvaro Quiros of Spain.
"I drove the ball as badly as I can remember. When you do that and don't hole your putts, there's a chance you'll shoot over par," Lawrie said.
"I hit some really nice putts on the front nine that didn't go in. And then I hit a poor tee shot on 8.
"That's the way it has been going, but that's golf. I could have easily been five shots better today without even thinking about it.
"I tend to show my emotions out there, and I was very frustrated today. I drove the ball poorly, so no real complaints on the score, but I hit at least five or six putts that were beautiful putts that didn't go in. There's not much you can do.
"It is not easy out there. Yesterday I had it so good - I was in position for every hole for a birdie, but today I struggled a bit and that makes it a very tough course."
Quiros not only matched the course record at Jumeirah Golf Estates, but set a new 36-hole scoring record, finishing two rounds at 12-under-par 132.
But Lawrie, the 1999 Open champion, believes he may still have a chance if he can improve over the weekend.
"Some days you get it and some days you don't, but we're still there or thereabouts. A good weekend and you never know," he added.