Fifty of the world's best golfers are in Colorado now for the BMW Championship at Castle Pines. Homegrown player Wyndham Clark will be vying for one of the top 30 slots to advance to the finals. The course is the longest in PGA history and it sits about 6200 feet above sea level, which means players have to adjust how they play the game. CPR's Andrea Dukakis spoke with Corey Masisak who covers sports for the Denver Post.