London: World number one Inbee Park`s hopes of a fourth successive major were dealt a blow when the South Korean shot a one-over-par 73 to finish eight shots off the lead after the second round of the women`s British Open on Friday.
Park, aiming to become the first player of either gender to win four majors in a calendar year, is two-under par for the tournament adrift of compatriot and leader Na Yeon Choi at St Andrews in Scotland.
"A little bit of everything wasn`t really working well out there today, but it was tough conditions," the 25-year-old, who has never won the tournament, was quoted as saying by the BBC.
"I think I grinded (it out) really well out there."
Former U.S. Open champion Choi, hit six birdies on the way to matching her first-round 67 on the Old Course with her only bogey coming at the seventh.
She is one shot clear of Japan`s Miki Saiki (66) and a further stroke ahead of overnight leader Morgan Pressel of the U.S. who is third on eight under after a 70.
Park has won the first three majors of 2013 - the Kraft Nabisco title, LPGA Championship and U.S. Open.
Officially, victory this weekend would not constitute a grand slam, since the Evian Masters in September has this year been granted the status of the fifth major.
But securing a fourth successive major in a calendar year would be heralded as an unprecedented achievement.
Park has already matched the feat of Babe Zaharias in 1950 of winning the first three majors of the year.