Image source, SNS
Chris Gotterup is the man to catch at the Renaissance Club
Martin Watt
BBC Scotland at the Renaissance Club
Scottish Open second round leaderboard (finishers only)
-11 C Gotterup (US); -9 H Hall (Eng); -8 M Penge, M Fitzpatrick; -7 R McIlroy (NI), N Taylor (Can), K Mitchell (US), M Schmid (Ger)
Selected others: -6 X Shauffele (US); -5 G Forrest (Sco); -3 T Fleetwood (Eng); -2 V Hovland (Nor); +2 Spaun (US)
American Chris Gotterup charged to the top of the leaderboard by equalling the course record with a blistering 61 on day two of the Scottish Open.
The world number 158 recorded nine birdies in a bogey-free second round at the Renaissance Club to set the clubhouse target at 11 under.
Amid sweltering and benign conditions in East Lothian, plenty of early starters made their move.
Having finished his opening round with a trio of birdies, Rory McIlroy picked up where he left off by gaining five shots in his opening seven holes.
The Northern Irishman's momentum waned on the back nine with just one further birdie before a missed putt from inside four feet on the eighth, his penultimate hole, resulted in the solitary bogey of a 65 that move him to seven under.
"The conditions were so good for us this morning," said McIlroy. "It felt like if you didn't play that first nine in three or four under, you were losing strokes to the field.
"I did a lot of good things today, a couple of loose shots here and there but overall it was a good day. I'm excited for the weekend, right in contention."
England's Matt Fitzpatrick, who has been battling form struggles for much of the year, ignited his title hopes with a 63 to move eight under alongside Marco Penge.
Fellow countryman Harry Hall was two off the clubhouse lead after posting 64.
US Open champion JJ Spaun is set to miss the cut after three bogeys in a 72 that left the American two over.
Defending champion Robert MacIntyre, world number Scottie Scheffler and overnight co-leader Sepp Straka were among the later starts on Friday.
Gotterup was threatening to break 60 after covering his ninth birdie of the day on 14, but four pars followed.
"It [59] never really crossed my mind," said the 25-year-old.
"I made the putt on 14 and I was like, all right, I've got 16 and obviously 17 and 18 are pretty tough. So I really wanted to get 16.
"I'm not going to complain too much when I make my birdies on a course that isn't always typically easy."