Rafael Campos of Puerto Rico won the Landfall Tradition event in North Carolina to jump up 43 places to number 144 in the World Amateur Golf Ranking.
Campos has enjoyed a good 2008 so far, and although he was briefly outshone by countryman Mauricio Muniz at the recent Eisenhower Trophy – Muniz led the field after a 64 in round one – it was Campos who finished in the top-50 of a world class field in the individual standings.
Elsewhere in the rankings, Chris Baker of the USA climbed 81 places on the back of his excellent performance in the early stages of Q-School for the PGA Tour, while Dustin Garza, another American, climbed into the top 20 after his victory in the Sycuan Collegiate Invitational.
Meanwhile, Ireland's Shane Lowry returned to the top-10 after being demoted to 11th last week. Lowry had dropped down after a disappointing performance in the Eisenhower Trophy.
Biggest mover of the week was Indonesia's Andik Mauludin, who came second in the ASEAN golf tour's International Championship in an 86-strong field that included some of the best professional golfers in South East Asia. Mauludin lost out by three strokes to his compatriot Rory Hie, who until very recently was still an amateur player himself.