Phoenix, AZ (SportsNetwork.com) - Hyo Joo Kim fired a 6-under 66 in Saturday's third round and moved two strokes clear of the field at the JTBC Founders Cup.

Kim finished 54 holes at 16-under-par 200. She earned her lone LPGA Tour win last year at the Evian Championship.

World No. 3 Stacy Lewis posted a 5-under 67 at Wildfire Golf Club and she moved into second place at minus-14.

Kim Kaufman, who led when the second round was completed earlier Saturday, managed a 2-under 70 in the third round. Kaufman ended 54 holes at 13-under- par 203 and she was joined there by Alison Lee, who fired a 9-under 63 for the low round of the week.

World No. 1 Lydia Ko carded a 3-under 69 for the second round in a row. She stands alongside Ha Na Jang (68) and Mi Hyang Lee (68) in fifth place at minus-12.

There was a four-hour weather delay on Thursday and the tournament narrowly caught up on Saturday as the final groups finished in near darkness.

Kim, who was in the final group, birdied the second and followed that with a pair of pars. She birdied the fifth and tapped in a short birdie try at No. 7 to join Lewis in the lead at 13-under.

Around the turn, Kim birdied the 10th, but fell one behind as Lewis birdied 10 and 11. After Lewis 3-putted for bogey at the 14th, Kim did the same at 13 to remain one back.

Kim got that shot right back as she birdied the 14th to join Lewis atop the leaderboard. Kim followed with birdies at 15 and 16 to move two clear. She parred the last two holes to end there.

"Been really good with the driver, second and third (shots), totally all the clubs. If I miss, I save, so I'm playing good," Kim said. "All the putts feel good."

Lewis made birdie at the first and parred her next three holes. She flew into the lead with five birdies in a 7-hole span from the fifth.

After her bogey at the 14th, Lewis closed with four pars in a row to end two behind Kim.

"I like that this is a ball-strikers course, you can kind of go at some pins and sometimes you have to play away from them. It's a tricky golf course, but you can make a bunch of birdies," Lewis said. "It's just nice to be done and to be able to focus on tomorrow and go through your normal routine in the morning."

NOTES: Kim's only other 54-hole lead was last year at the Evian Championship, where she beat Karrie Webb by one stroke ... Lewis is looking for her first win since last year's Walmart NW Arkansas Championship ... Dating to last season, Ko has posted 23 straight under-par rounds.