(Reuters) - Greg Chalmers made five birdies over his final six holes to remain on course for a maiden PGA Tour triumph after the Australian extended his lead at the Barracuda Championship to six points after three rounds on Saturday. Chalmers carded a 15-point round for a 54-hole total of 39, well clear of Americans Ben Martin and Gary Woodland at an event that uses the modified Stableford system at the scenic Montreux Golf layout in Reno, Nevada. Martin's 16-point haul was the best round of the day, while Woodland tallied 11 points to stay in the hunt for the title. More...