Jordan Spieth is the youngest first - round winner in Masters history . Spieth set a new 36-hole record with his 14-under tee . Dustin ##th became the first golfer ever to hit double figures in one round .
Jordan Spieth is the youngest first-round leader in Masters history . Spieth set a new 36-hole record with his 14-under total . Dustin Johnson became the first man ever to hit three eagles in one round .