Rory McIlroy's course record at Royal Aberdeen lasted just three days as Chile's Felipe Aguilar carded a superb 63 in the final round of the Aberdeen Asset Management Scottish Open.
McIlroy's 64 on Thursday had come just two hours after Sweden's Kristoffer Broberg established a new record with a 65, having gone out in the first group at 6:30am.
And Aguilar went one better on Sunday morning as he took advantage of the rain-softened course and no wind to fire eight birdies, six of them in seven holes in a front nine of 30.
"It's pretty amazing," said Aguilar, who won his second European Tour title in Singapore earlier this season with a final round of 62. "I haven't hit the ball that well since Singapore.
"I hit it really good, made a couple of of long putts and overall it was a really, really good round. I did not get into any trouble and the only green I missed was on the 18th because I went for the flag.
"Finishing like this on this course is a very good way to finish because I was struggling the first three days. The course was a little softer and you could be more aggressive. It probably won't be the only round of eight under."
England's Justin Rose and Scotland's Marc Warren shared the lead on 10 under par but were not due off until shortly after 3pm.