The reigning US Open Champion, Ryu would have set two records at the RACV Royal Pines Resort but unfortunately neither feat will be given official status.

Due to the soaking the course has received over the past week, players have been able to take preferred lies on the closely mown areas and the altered playing conditions means the records won't stand.

Ryu's first record was equalling Queensland's Karrie Webb's outstanding round of 11-under-par 61 and her second was posting the lowest 36-hole score of 17 under 127 on the Ladies European Tour (LET). The Gold Coast RACV Masters is co-sanctioned with the LET.

Not that Ryu was too upset at missing out on the record books. She will most likely be busy tonight remarking her golf balls. At present she marks it with "62" to represent her career low round, but now she will be changing it to "61."

"I really wanted to change the number, finally I can change the number," she said.

"The last shot I was really, really nervous, but I made it, so I'm really, really happy, and now I'm really looking forward to the last two rounds."

Lack of official recognition aside, it was a remarkable score by the 21-year-old who could have shot one shot less had she not bogeyed her second hole of the day.

Still it was enough to give her a sizeable four shot lead over Dutchwoman Christel Boeljon who is on 13 under 131, heading into the weekend.

Boeljon finds herself in outright second courtesy of a blistering birdie, birdie, eagle finish.

The 24-year-old sunk a 15-metre eagle putt on the 430m par 5 18th to end her round in style.

"It's a great feeling, great way to end my round, so you know, what do you do? You take it every day," she said.

After four attempts, Boeljon has finally made the cut at Royal Pines and said experience on the greens was the key.

"In the previous years, I've always had a little bit of trouble on the greens, always had too much break and it showed," she said.

"Now it's just what it is, I don't want to read too much into the putts."

Australia's Nikki Campbell had another strong round, again firing a five under 67 to share third place with Ryu's compatriot Bo-Mee Lee on ten under. The duo is one shot ahead of Italian Diana Luna, American Amelia Lewis and England's Felicity Johnson who are on nine under.

Queenslander Bree Arthur is the next best placed Australian in outright 8th position on eight under.

The teenage duo of 16-year-old Lexi Thompson and exciting amateur, 14-year-old Lydia Ko, continued to wow the crowds today.

Ko recorded a three under 69 but was again left to rue two bogeys in her round. Yesterday she carded three but today she at least took the honours over playing partner Thompson.

Ko's 69 has her in a tie for 18th with a host of players including Australian Stephanie Na at five under under 139. Thompson's two under 70 today sees her in a share of 9th place on seven under 137.

The 2009 Ladies Masters champion Katherine Hull will be missing from the weekend after finishing on even par with Perth's Kristie Smith. The pair finished one shot below the cut line. England's Melissa Reid is another big name to miss the next two days, while Laura Davies and 2011 Kraft Nabisco Champion Stacy Lewis just scraped in on one under.

Earlier in the day, the playing group of Corie Hou, Inhong Lim and amateur Annie Choi were disqualified from the tournament for a rule breach.

The trio were playing preferred lies through the green instead of on closely mown areas only. All admitted to breaching this rule yesterday and were then immediately disqualified after being questioned on the 2nd tee today.