Germany's Mack fires 63 to grab LPGA Portland Classic lead

The 25-year-old German, chasing her first LPGA title, fired seven birdies and an eagle in a bogey-free opening round at Columbia Edgewater Country Club in Portland, Oregon. "Pretty flawless round," Mack said. "It seemed so easy out there today. Very nice start and that just kept me pretty calm I would say. "Never really thought about it as a whole. Made some good putts. Just didn't make big mistakes or if I hit some bad shots I got myself out of it pretty good." South Korean Jang Hyo-joon, Russian Nataliya Guseva...