The Australian shot a five-under 67 on Friday, finishing her second round before more thunderstorms soaked an already wet Shoal Creek course. Half the field completed the second round yesterday morning.
Thailand’s Ariya Jutanugarn is second after a 70. South Korean-born Su-Hyun Oh, who moved to Australia at the age of eight, shot a 68 and is third. She is four shots behind Smith, who is at 10 under 134 for the tournament.
Michelle Wie is among eight players tied for fourth, seven shots off the lead. Wie had a 72 in the second round after a 69 on Thursday. The third round begins with groups of three, starting on the first and tenth tees.
Scotland’s Catriona Matthew shot a second-round 75 to go with her first-round 74 and missed the cut.