DOMINIQUE Boulet enjoyed a morale-boosting runaway win on the third leg of the 1993 Hong Kong Professional Golfers' Association Order of Merit in Macau yesterday. In wet and windy conditions at the Macau Golf and Country Club on Coloane Island, Boulet returned a closing round of one-over-par 72 for a 36-hole aggregate of 140 and a nine-shot victory over closest challenger Daniel Liu Ping-kwong. Four shots clear of the field after his course-record 68 on Monday, Boulet did not come under any pressure yesterday as his rivals faltered over the tight and tricky 6,325-yard layout. It was Boulet's first success of the season and, after a year of disappointments, it will raise his hopes of a brighter 1994. In winning the Macau event, Boulet leapfrogged over Yau Sui-ming into second place in the Order of Merit standings, behind Richard Kan. Kan, who won the second leg of the circuit at Fanling last week, had his worst finish in a domestic event for more than a year. Although he bettered his opening-round 78 by three strokes, he ended in fifth spot on 153. Third overnight, Liu, a teaching professional at Royal Hong Kong Golf Club, shot a 76 to move into second place, while Leung Hon-man went in the opposite direction. After a 72 on Monday, Leung needed a par-five at the last to maintain second position. But he finished with an inglorious 10 to drop off the leaderboard. Third was Len Sorensen on 151.