McIlroy signed for a 1-under 71 at the Dundonald Links but it was two too many to overcome an opening 74, the Northern Irishman 1-over for the week and packing his bags early ahead of The Open Championship next week.
It’s been a difficult year for McIlroy on the course as injury has cut into his schedule and left him with limited competition time, this week just his ninth tournament since January.
The rust was clear this week with the World Number Four making double bogey at the 13th hole for the second straight day and managing a total of just seven birdies for the 36 holes.
There were no such issues at the top of the leaderboard, however, Harrington employing his much talked about new ‘walk through’ swing to great effect in adding a 68 to his opening 67.
His 9-under two-day total puts him in a three way tie at the top of the standings alongside Germany’s Alexander Knappe and England’s Callum Shinkwin.
It’s been an ideal tune up for next week’s Open for Harrington, the Irishman claiming his second Claret Jug at Birkdale when the tournament was last there in 2008.
Dodt continues to lead the Australian challenge adding a second round 69 to his opening 67 to be just one off the pace heading to the weekend.
The Queenslander played an almost carbon copy of his opening round with a back nine charge the key to his round.
Making the turn even par after a bogey and a birdie, Dodt ran off three birdies on the inward half including consecutive gains to finish his round.
Adam Scott and Jason Scrivener are next best of the Australians at 4-under and T15, Scott overcoming a horror start to post a creditable 71 and remain in the mix.
Starting at the 10th Scott made a clumsy double bogey at the 13th and went to the turn 2-over but turned things around on the way to the clubhouse with four birdies and a bogey.
Scrivener’s round was less adventurous, the West Australian posting five birdies against a lone bogey in an impressive turnaround from missing the cut last week in Ireland.
Sam Brazel was the last of the Australians to make the cut, the Lismore native part of a logjam of players at 3-under including New Zealand’s Ryan Fox.
Scott Hend and Marcus Fraser both finished even par and one outside the cut line while Wade Omsby was a further stroke back after a second round 74.
Brett Rumford was far from his best on day two making bookend double bogeys at his first and last holes on his way to a 75.