(CNN) -- South Korea's Jiyai Shin shot a stunning eight-under par round of 64 to smash the course record and storm to the top of the leaderboard at the British Women's Open at Hoylake on Saturday.
The Korean backed up an opening round 71 at the Royal Liverpool Golf Club with a flawless display which included six birdies and an eagle to leave her on nine-under par after 36 holes.
Shin's round was three shots better than the previous record set by Scotland's Mhairi McKay in 1996.
"A bogey free day and then bunker free, too. I missed just one fairway. And on the back nine, it's blowing very strong wind, but I just stay focused on my tempo," said Shin, who won the tournament back in 2008.
"I can't believe the way I hit it, 64 shots today on this course, it's really tough," she added.
Saturday's testing conditions were a vast improvement on Friday's weather - tournament officials were forced to abandon play after an hour and 20 minutes because of strong winds.
Shin is five shots clear of her nearest rival and compatriot Inbee Park who compiled a superb second round of 68.
Japan's Mika Miyazato and Australia's Karrie Webb both finished with rounds of 70 to leave them in a tie for third on three under, while America's Katie Futcher is a shot further back after repeating her opening round of 71.
A group of five players, which includes New Zealand's teenager amateur Lydia Ko, are currently tied for sixth place, eight shots off the lead.
First round leader's So Yeon Ryu and Haeji Kang faded on Saturday -- Ryu struggling to a 74 while Kang carded a disastrous 79.
America's Michelle Wie had a better second round finishing with a two-under par 70 after opening with a 75, leaving her one-over par for the tournament.
Players will complete the final 36 holes of the tournament on Sunday.