MIAMI (AFP)–Taiwan's Chien Peiyun shot a superb eight-under round of 64 to grab a four-stroke lead after the second round of the LPGA's Queen City Championship on Friday.

Chien caught fire after she holed out to make eagle on the par-4 sixth and then made five birdies on the back nine, with three in a row after the turn and two to finish her round.

"I just putted very well these two days," said the 32-year-old after her lowest round of the year.

"The eagle is amazing. I was thinking maybe it would go in because I have had a lot of shots that almost went in (over the) last couple of weeks, but was still waiting for an eagle. But it just happened, so I'm very happy.

"I really want to play well in America and go back to Asia and play in the Asian Games for my country," she added.

Dottie Ardina of the Philippines, who fired a 66 in the opening round, faltered with a 74 to slide down the leaderboard.

Yuka Saso charged back after a 66 following a first-round 69 to make the cut.