They now hold a three-shot lead heading into the weekend with the field playing foursomes (alternate shot) in the third round.
"To be honest, I was thinking a little bit about that 59 with the last two holes to go, but 60 was still a great score. Søren got it going by holing his second shot on the third, and then I chipped in for eagle also. So combined, we were very good," said Olesen.
With Kjeldsen adding, "Thorbjørn was playing exceptional so I thought if I get it in play and get it on the green, I could let him do all the fireworks and it worked pretty well.
"In terms of temperament, I don't think we're that different. But I think game-wise we're very different.
"Thorbjørn's very flashy, he hits it very far from the tee and overall has got an amazing game; whereas I'm more like a train, I arrive on time but without too much of the flashy stuff."
Sitting three shots off the lead is the Chinese team of Wu Ashun and Li Haotong, they are hoping to secure China's first World Cup of Golf victory.
"When I started playing golf, I didn't think I could get into the World Cup one day, so it's kind of like a dream come true. So it's very, very proud for me to be here," said Li.
"Everybody back home in China will be very focus on the World Cup this week, so it's great we are playing so well."
First-round leaders, Rafa Cabrera Bello and Jon Rahm didn't feel their best golf was on display, but still managed to shoot 5-under 67 and be outright third on 8-under the card.
"I think today's round wasn't a great one, but it wasn't a bad one either. I felt that maybe we were a bit unlucky with the fact that we both played great on the same holes, and played bad on the same holes as well. So it was almost like we were just playing the one ball," said Cabrera Bello.
Rounding out the top-5 on the leaderboard is Team England; Chris Wood and Andy Sullivan, Team Italy; Francesco Molinari and Matteo Manassero, Team USA; Rickie Fowler and Jimmy Walker and Team France; Victor Dubuisson and Romain Langasque.
The New Zealand pair of Danny Lee and Ryan Fox had a good day on course firing 8-under 64 to be tied 10th with two rounds to play.
The low scoring day was made even more poignant with the New Zealanders pledging to donate NZ$500 for every birdie they make to the Kaikoura earthquake fund. So far they have raised NZ$6,500 with 10 birdies today and three yesterday.
Fox and Lee are hoping to win New Zealand's first World Cup of Golf title after the country has recorded two runner-up results.
"Obviously we'd love to get our names on the trophy. I don't think there's been a New Zealand pair win it," added Fox, with a cheeky comment alluding to the rivalry between Australia and New Zealand as sporting nations.
"It's always nice to get one up over on you guys, especially on home soil, I'll leave it at that."
Host nation Australia continued to be lacklustre in the second round, their frustrations on course showing through.
"It's just hard when you're so used to landing it short on certain holes and bouncing it up and then all of a sudden you're landing it short and it's spinning backwards," said Leishman, with the pair combining for a round of 4-under 68 to be 2-under the card and down the leaderboard in a tie for 18th.
"I guess it's a little frustrating in that respect, but we're professional golfers and we need to adjust to that sort of thing.
"So we've had a few days on the course now and it's been soft every day. So hopefully we can get that under control, adjust the bounces right and have a good really low couple of rounds."
The third round of the ISPS HANDA World Cup of Golf, which will be played in the foursomes format, gets underway at 10.20am, with the last group due out on course at 12.43am.
Headlines at a glance
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Back to School
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Griffin's Order of Merit opportunities
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