Soren Kjeldsen and Thorbjorn Olesen roared to the top of the leaderboard in Malbourne after shooting.

A surprise onslaught from Denmark odd couple Thorbjorn Olesen and Soren Kjeldsen blew the World Cup of Golf wide open yesterday during a high-scoring second round of fourball play in Melbourne, Australia.

Several teams made significant moves at Kingston Heath, but none bigger than the Danish duo, who produced a sensational round of 12-under-par 60 to rocket to the top of the leaderboard at 12-under overall — three clear of China and four ahead of Spain.

Olesen admitted he thought about the possibility of scoring an elusive 59 as the pair drilled eight birdies and two eagles to stun the galleries, a blitz that included a 139-meter hole out from Kjeldsen on the par-4 third.

The younger Olesen was the star, contributing six birdies and an eagle, but the accurate ball striking of world No. 45 Kjeldsen playing first allowed his partner, ranked 67, the freedom to explore the possibilities in cold and windy conditions.

Kjeldsen said the pair complemented each other.

"Thorbjorn's very flashy, he hits very far off the tee and overall he's just got an amazing game," the 41-year-old said of his 26-year-old countryman.

"Whereas myself, I'm sort of like a train — I just arrive on time but without too much of the flashy stuff."

Kjeldsen added that he could play around Kingston Heath for the "rest of his life", portraying the affinity he has quickly developed with the course.

"This is my kind of golf," the four-time European Tour winner said.

"You don't just get up and whack it as hard as you can. You have to think your way around."

As the format switches back to the more difficult "foursomes" (where players hit the same ball taking alternate shots) today, Denmark will be joined in the last group out by the other surprise package — China duo Li Haotong and Wu Ashun.

The Chinese have become fan favorites this week courtesy of their energetic "chest-bumping" celebrations, and there was plenty to be excited about as they followed up their impressive 70 on Thursday with a 7-under 65.

Overnight leader Spain kept its title pursuit on track with Rafa Cabrera Bello and Jon Rahm producing a 5-under 67, while American pre-tournament favorites Rickie Fowler and Jimmy Walker ensured they would be a factor over the weekend by carding their own 67.

England and Italy were the other big movers on day two, each posting rounds of 66 to move to 7-under and equal with the United States and France, which conjured a 5-under round of 65.

New Zealand (64), Netherlands (64) Japan (65), Chinese Taipei (65) Scotland (65), Sweden (66), India (66), Thailand (66), Wales (66) and South Africa (66) all had rounds of 6-under or better to either catapult up the leaderboard, or make amends for a poor showing in the foursomes.