Zhang's 63 leaves Korda plenty to do at Founders Cup

American Rose Zhang shot an immaculate nine under-par 63 to hold a two-stroke lead -- and a six shot advantage over record-chasing Nelly Korda -- after the first round of the LPGA's Founders Cup on Thursday.Zhang's bogey-free round leaves world number one Korda with plenty of work to do if she is to mount a bid for an LPGA record sixth consecutive victory.