Duncan Stewart, leader through the first two rounds, was caught down the home stretch by American Tommy Mou in the Dirab Championship at Dirab Golf and Country Club, Saudi Arabia.
Mou, whose opening rounds were 69 and 67, shot a closing three-under-par 69 to Stewart's 71 and beat him by one stroke with an 11-under total of 205.
The Grantown-on-Spey man, who equalled the course record in the first round with a 66, stayed in the lead with a second-round 69 but finished on 206.
England's Zane Scotland finished third on 209 with scores of 68,
72 and 69.
Mortonhall's Greg Nicolson finished joint ninth on level par 216 with scores of 68. 74 and 74.
LEADING FINAL TOTALS
Par 216 (3x72)
205 Tommy Mou (US) 69 67 69.
206 Duncan Stewart (Sco) 66 69 71
209 Zane Scotland (Eng) 68 72 69
210 Freddie Quicker (Swe) 70 68 77
212 Ian Keenan (Eng) 72 72 68
213 Michael Harradine (Swi) (am) 70 70 73
214 Trevor Marshall (NZ) 73 71 70
215 Matthew Swales (Eng) 78 67 70.
216 William Harrold (Eng) 70 71 75, Greg Nicolson (Sco) 68 74 74
OTHER SCORE
226 Clarke Lutton (Sc\) 76 75 75 (T36)
ends
