Japan's Hinako Shibuno moved into a three-shot lead after the second round of the US Women's Open in Houston, but there was disappointment for Ireland's Olivia Mehaffey when she failed to make the cut. 

The Co Down amateur hit 71 on Friday, but it was not enough to progress, as her seven-over-par total left her shots outside the cut mark

Shibuno was one shot behind Amy Olson after the opening round but carded a four-under-par 67 to move to seven under.

Swedish amateur Linn Grant is in second place on four under after a second successive 69 while Olson could only manage a 72 and is tied in third on three under with another amateur, Kaitlyn Papp, and Megan Khang.

Former champion Cristie Kerr is among a big group on two under but it was a bad day for England's Charley Hull.

The 24-year-old is seven shots off the lead after she could only manage a 73 in a rollercoaster round at Cypress Creek.

Hull started at the 10th hole but was three over for her first nine holes, with a double bogey on the par-four 14th. She recovered brilliantly by birdieing holes one to four but then dropped shots at six, seven and eight.

She is tied with countrywoman Jodi Ewart Shadoff, who carded a 72 on the Jackrabbit course.

The event was rescheduled from June and two courses are being used for the first time to combat a lack of daylight at this time of year.