/teamtitleist/gb/b/weblog/posts/william-mouw-trusts-pro-v1x-to-claim-his-first-pga-tour-title PGA TOUR | ISCO Championship In full control of his Pro V1x golf ball, William Mouw closed in 9-under 61 to earn his first career PGA TOUR victory. Mouw’s final round, which featured nine birdies and zero dropped shots, was the low round of theen-USTelligent Community 10