WATERLOO, Canada, June 21, 2012 (AFP) - US rookie Sandra Changkija matched the low first-round score of the LPGA season, an eight-under par 63, to grab the lead with half of the field of 144 unable to finish their opening 18 holes because of a threat of lightning.
The first round will resume on Friday morning at Grey Silo Golf Course in the inaugural edition of the $1.3 million event.
Feng, ranked fourth in the world, won her first career LPGA title two weeks ago at the LPGA Championship and shined in her first competitive round as a major champion.
"I thought a lot before I started because I know after you win a tournament, maybe sometimes you'll be expecting yourself to do too well and then that would give yourself actual pressure," Feng said.
"But that was what I was trying to tell myself. I said. 'Just keep patient and just focus on shot by shot and try your best.'"
Feng birdied the second, par-5 sixth and par-4 eighth, the par-3 12th and par-4 14th ahead of her lone bogey at the par-4 15th, which she answered with a birdie at the par-5 18th to claim second place all to herself.
Sweden's Karin Sjodin, Norway's Suzann Pettersen and Americans Lacey Agnew and Angela Stanford shared third on 67. Sweden's Anna Nordqvist was on five-under with five holes yet to finish when play was stopped.
Changkija, ranked 527th in the world, is trying to raise $25,000 on Facebook to help with expenses in her rookie LPGA season but so far had gotten only $40. A triumph on Sunday would be worth $195,000 to the 23-year-old American.
"My ball striking has been good for most every tournament I've played," she said. "I just missed a few fairways here and there. I've been keeping up with my ball striking and just needed to make some good strokes."
Changkija, who began off the 10th tee, fired a six-under 30 on her inward nine, the course's front side. After birdies at 16 and 18, she added another at the second and then began a run of five birdies in a row at the par-4 fourth.
Changkija has made only two cuts in seven events this season with a best finish of 55th at the ShopRite Classic, giving her only $6,708 in prize money for the year.