DUBLIN, Ohio (Ticker) -- Scotland's Mhairi McKay owns a one-shot lead going into Saturday's second round of the Wendy's Championship for Children.

McKay fired a bogey-free 7-under-par 65 on Friday in the opening round at the Tartan Fields Country Club.

With the LPGA Tour set to play the Women's British Open at Turnberry Golf Club, McKay was kept off the course she has played since she was 10.

In steamy conditions, the 27-year-old Glasgow native collected an eagle and five birdies for a one-stroke lead over Rosie Jones, who finished fourth here last year. McKay is seeking the first win of her five-year career.

Also on the upswing was unheralded Michele Vinieratos, who shot a 67 on her 34th birthday for sole possession of third place.

The birdies started falling early for McKay, who started on the 10th tee and rolled in putts of 20 and 10 feet at the 11th and 12th holes, respectively. At the 503-yard 13th, she left a 3-wood just 10 feet from the cup to set up an eagle that rocketed her to 4-under.

After five straight pars, McKay chipped to set up another 10-foot birdie at the 546-yard second hole and capped her best round of the year with an 18-foot birdie at No. 8.

"I feel good about my game," she said. "Hopefully, I can reproduce that ball-striking tomorrow. Any score in the 60s, any day, I'm delighted with that. I'm especially delighted with the 65 today."

Defending champion Wendy Ward managed just an even-par 72 and trails McKay by seven shots.

Last year, Ward set a tournament record with a 54-hole total of 21-under and defeated Annika Sorenstam and Moira Dunn by three strokes.

Coming off a playoff win at last week's Big Apple Classic, Korea's Gloria Park struggled to a 77 and already is 12 shots off the pace.