MELBOURNE : An unflappable Lucas Herbert led his home Australian Open at the halfway mark on Friday as fan favourite Cameron Smith tumbled down the leaderboard with a poor back nine at Kingston Heath.South Korean amateur Yang Hyo-jin continued her stellar tournament to lead the women's component of the du

Lucas Herbert drained an eagle at the last in a flawless eight-under-par 63 Thursday to lead the Australian Open in Melbourne and upstage LIV Golf teammate Cameron Smith who trails by two. In the women's tournament, Australia's Su Oh shared a one shot lead with South Korean teenager Yang Hyo-jin…