Oxfordshire's Gary Boyd finished 14th in the Johnny Walker Championship at Gleneages after holding the joint lead at halfway.
Boyd, from Banbury, carded rounds of 67 and 68 to share the lead on nine-under-par after 36 holes.
But a 74 and 76 saw him slip down to three-under-par and 14th.
In-form Boyd finished tied second in the Czech Open the previous week after losing out in a play-off.
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