Open Extended ReactionsSAN FRANCISCO -- Georgia teenager Mason Howell capped a productive summer before his senior year of high school by winning the U.S. Howell won it with a par to halve the 30th hole, ending the most-lopsided final since Bryson DeChambeau also beat Derek Bard 7 and 6 in 2015. Howell won five of six holes on the front nine of the opening 18 holes -- including an eagle at No. "That's one thing we really wanted to start off with today was get the lead through nine," Howell said. "We got off to such a good start.