Golf: Harper one-under going into last round
Harper followed his opening 72 with a 71 to sit tied 30th on one-under-par. He signed for six birdies and was out in 32 but had a double-bogey and two bogeys on his inward journey.
Fellow Archerfield player Zack Saltman was tied for 42nd on 144 (73, 71), two shots ahead of Craigielaw's Shaun McAllister (74, 72).
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Hide AdRecovering well from a 78 in the opening round, Swanston's John Gallagher fired a one-under-par 70 to make the cut on four-over.
But, lying in a tie for 113th, the former Scottish amateur champion needed to shoot the lights out in his final round to make a serious climb up the leaderboard.
Chris Kelly was the leading Scot going into the final round, the Cawder player lying six shots behind leader Max Brackley on three-under.