Rory McIlroy's taken the myriad American get-in-the-hole chants to heart and slam dunked his tee shot. He's three-under par through seven holes, one stroke off the lead. Lydia Ko is tied for nin.

Kazuma Kobori has shot a four-under par 68 to sit tied for 10th, seven shots off the pace. Daniel Hillier's in a share of 35th at two-under.