The cool, windy conditions are making for close compeition at the U.S. Bank Championship. By the end of play Friday, there were 12 players within four strokes of the lead heading into a weekend that promises to be a shootout. At the top of the leader board is Australian Greg Chalmers (pictured), who fired a second round 3-under par 67 to give himself a two-shot cushion over Chris Riley, Jeff Klauk and Kris Blanks. Kevin Na, Marc Turnesa and Steve Flesch trail Chalmers by three shots.