DOMINIQUE Boulet has become the first Hong Kong golfer to receive an official world ranking. By virtue of finishing in joint eighth place in the US$970,000 Dunlop Open in Japan on Sunday, 28-year-old Boulet collected eight points in the Sony World Rankings which are updated every week. The weekly list, compiled by International Management's Group Tony Greer in London, contains almost 1,000 players. Until Sunday, however, no Hong Kong professional had ever finished high enough in a major tournament to pick up any points. As well as winning a cheque for almost US$24,000 for his efforts at Ibaraki Golf Club, Boulet's eight-point haul sees him enter the world rankings in equal 641st position. Boulet, who returned to the territory last night, said he hopes his performance in the Dunlop Open will help him to secure sponsorship which would enable him to return to Tokyo later in the year to attempt to qualify for the Japanese PGA Tour. Said Boulet: ''I would like to try and win my playing card for Japan, but it's an expensive undertaking and you need sponsors. I hope now that I will be able to get some backing.''