A statement Sunday.
@WilliamMouw shoots a final-round 61 to take home the @iscochampionship!
He had total control of his Pro V1x all day in Louisville, beating the Sunday scoring average by 9.5 shots to come from behind and win his first PGA TOUR title.
William also led a 1-through-13 finish for Titleist golf ball players on the final leaderboard.
#1ballingolf